Document:

EX-10.19

 Exhibit 10.19 

February 14, 2020 
 Kirin Holdings Company, Limited 

4-10-2 Nakano, Nakano-ku 

Tokyo 164-0001, Japan 

Dear Sirs 
 Re: Guarantee—fee letter 

This letter (the “Fee Letter”) is entered into in connection with the Guarantee Letter
(hosho-sho) (the “Guarantee”) to be submitted by Kirin Holdings Company, Limited (“Kirin”) in favor of Sumitomo Mitsui Banking Corporation New York Branch (the
“Beneficiary”) for the benefit of THORNE HOLDING CORP. (the “Company”), pursuant to which Kirin guarantees certain obligations of the Company under the Uncommitted and Revolving Credit Line Agreement, to be entered
into by and between the Beneficiary and the Company, substantially in the form attached hereto as Exhibit A, subject to the limitations and other terms set forth in the Guarantee. 

In connection with, and as consideration for Kirin to enter into, the Guarantee, the Company and Kirin hereby agree as follows: 

 

	 	a)	 The Company agrees to pay Kirin for its own account, an annual fee at the rate per annum of 2.00% of
$10,000,000 (the “Fee”), until the Guarantee is terminated. The Company shall pay the Fee and any other amounts accrued or otherwise payable pursuant to this Fee Letter (i) on an annual basis on each anniversary of the Effective Date,
as defined below; and (ii) upon the occurrence of any change of control in respect of the Company; provided that, upon the termination of the Guarantee, the Fee payable with respect to a partial year in which the Guarantee was terminated shall
be equal to (x) the Fee multiplied by (y)(i) the number of days elapsed in such year (beginning on the relevant anniversary of the Effective Date) up to such termination divided by (ii) 365. Payment shall be made by wire transfer of immediately
available funds to a bank account designated by Kirin. 

  

	 	b)	 The Company agrees to reimburse Kirin for any reasonably incurred fees or expenses related to or in connection
with any disputes arising between Kirin and the Beneficiary out of or in connection with the Guarantee including, but not limited to, attorney fees and costs for litigation. 

 

	 	c)	 In the event that Kirin is required to pay any amounts under the Guarantee, such amounts shall promptly be
reimbursed by the Company to Kirin in cash. In case the Company is not able to wholly or partially reimburse such amounts to Kirin, the parties may agree to deem the unreimbursed amount of Kirin’s payment under the Guarantee to be made for the
benefit of the Company in consideration for debt or equity securities of the Company on terms reasonably satisfactory to Kirin and the Company. 

	 	d)	 The Company agrees to provide Kirin with the following documents; 

i. Monthly P&L, Balance Sheet, and Cashflow Statement within 21 days of the end of each month 

ii. Next 12 months cashflow estimate, which will be updated every quarter, by the end of last day of the month after the end of each quarter
(i.e. 2020/Q2-2021/Q1 estimate to come by April 30th, 2020) 
 iii. Monthly borrowing detail (amount,
interest rate, term) within 10 days of the end of each month 
  

	 	e)	 The Company agrees to fully pay back to Kirin immediately after the Uncommitted and Revolving Credit Line is
executed, in accordance with the letter dated on July 26, 2019 between the Company and Kirin, all and any indebtedness and accrued interest thereof arising out of or in connection with (i) Promissory Note Purchase and Sale Agreement dated
July 26, 2019 and (ii) Unsecured Subordinated Promissory Note dated July 26, 2019 between the Company and Kirin. 

 The
Company agrees that all of the fees and expenses set forth in this Fee Letter shall be fully earned upon becoming due and payable in accordance with the terms hereof. 

This Fee Letter, together with the Guarantee, embody the entire agreement and understanding between the parties hereto with respect to the specific matters
set forth herein and supersede all prior agreements and understandings relating to the subject matter hereof. 
 This Fee Letter shall be governed by and
construed in accordance with the laws of the State of New York. Each of the parties hereby irrevocably waives all right to trial by jury in any action, proceeding or counterclaim (whether based on contract, tort or otherwise) arising out of or
relating to this Fee Letter or the transactions contemplated hereby. 
 This Fee Letter may be executed in any number of counterparts, each of which shall
be an original, and all of which, when taken together, shall constitute one agreement. Delivery of an executed signature page of this Fee Letter by facsimile or electronic mail transmission shall be effective as delivery of a manually executed
counterpart hereof. 
 The Fee Letter shall become effective as of the time of execution of the Credit Agreement and which is subject of the guarantee under
the Guarantee (the “Effective Date”) and shall remain effective until the expiration or termination of the Guarantee, and provided that the Company shall remain liable following the termination hereof for accrued and unpaid Fees. 

This Fee Letter may not be amended or any provision hereof waived or modified except by an instrument in writing signed by the Company and Kirin. 

This Fee Letter may not be assigned by the Company without the prior written consent of Kirin. 

Faithfully 
  

			
	Thorne Holding Corp.

			
		
	By:	 	/s/ Scott Wheeler

			
	Name: Scott Wheeler
	Title: CFO

  
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	Acknowledged and agreed:
	
	Kirin Holdings Company, Limited

			
		
	By:	 	/s/ Takashi Hayashi

			
		
	Name:	 	Takashi Hayashi
	Title:	 	General Manager, Finance Department

  
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 Exhibit A: UNCOMMITTED AND REVOLVING CREDIT LINE AGREEMENT(Draft) 

SECTION 1.01 UNCOMMITTED AND REVOLVING CREDIT LINE AGREEMENT dated as of February 14, 2020 between SUMITOMO MITSUI BANKING CORPORATION, a Japanese
banking corporation, having its offices at 277 Park Avenue, New York, New York 10172 (the “BANK”), and THORNE HOLDING CORP., a corporation organized under the laws of Delaware, having its offices at 620 Omni Industrial Boulevard,
Summerville, South Carolina 29486 (the “BORROWER”). The parties hereto hereby agree as follows: 
 ARTICLE I. 

DEFINITIONS 
 SECTION 1.01
DEFINED TERMS. As used in this AGREEMENT, the following terms have the following meanings (terms defined in the singular to have the same meaning when used in the plural and vice versa): 

“AGREEMENT” means this UNCOMMITTED AND REVOLVING CREDIT LINE AGREEMENT, together with all exhibits and schedules hereto, as the same
may be supplemented, modified, amended, restated or replaced from time to time in the manner provided herein. 
 “APPLICABLE INTEREST
RATE” means, with respect to each LOAN, the interest rate per annum quoted by the BANK and agreed to by the BORROWER at the time of making such LOAN. 

“BENEFICIAL OWNERSHIP CERTIFICATION” means a certification regarding beneficial ownership as required by the BENEFICIAL OWNERSHIP
REGULATION. 
 “BENEFICIAL OWNERSHIP REGULATION” means 31 C.F.R. §1010.230, as amended, modified, or supplemented from time
to time. 
 “BUSINESS DAY” means any day other than a Saturday, Sunday, or other day on which commercial banks in New York, New
York are authorized or required by law to close. 
 “CHANGE OF CONTROL” shall mean (x) the sale or transfer of more than
fifty percent (50%) of the outstanding capital stock of the BORROWER in a single transaction or series of related transactions to PERSON who are not then stockholders of the BORROWER, (y) the issuance of shares of common stock, or securities
convertible into or exercisable for shares of common stock, constituting more than fifty percent (50%) of the outstanding capital stock of the BORROWER immediately after issuance, to PERSON who were not holders of common stock, on an as converted
basis, immediately prior to such issuance or (z) the sale, exclusive license or other disposition of all or substantially all of the consolidated assets of the BORROWER and its majority owned subsidiaries in a single transaction or series of
related transactions to PERSON who are not then stockholders of the BORROWER. 
 “CREDIT LINE” means a discretionary and
uncommitted line of credit that the BANK establishes for the BORROWER pursuant to SECTION 2.01 hereof up to the amount referred to therein but which may be terminated in whole or reduced in part pursuant to SECTION 2.02 hereof. This CREDIT LINE
shall not be construed as the commitment of the BANK to make any LOAN or extension of credit. 

  
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 “DEFAULT” means any of the events specified in SECTION 7.01 hereof, whether or not
any requirement for the giving of notice, the lapse of time, or both, or any other condition, has been satisfied. 
 “DISBURSEMENT
DATE” means, in relation to a LOAN, the date on which such LOAN is advanced, as requested by the BORROWER and agreed to by the BANK in accordance with SECTION 2.03. 

“DOLLARS”, “U.S. DOLLARS”, “US$”, “USD”, or “$” means the lawful currency of the United
States of America. 
 “EVENT OF DEFAULT” means any of the events specified in SECTION 7.01. 

“FCPA” means the Foreign Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder. 

“GAAP” means generally accepted accounting principles in the United States of America set forth in the opinions and pronouncements
of the Accounting Principles Board and the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board, as in effect from time to time. 

“GOVERNMENTAL AUTHORITY” means any nation or government, any state or other political subdivision thereof, any central bank (or
similar monetary or regulatory authority) thereof, any entity exercising executive, legislative, judicial, regulatory or administrative functions of or pertaining to government, and any corporation or other entity owned or controlled, through stock
or capital ownership or otherwise, by any of the foregoing. 
 “GUARANTOR” means each of Mitsui & Co., Ltd., a Japanese
corporation; and Kirin Holdings Company, Limited, a Japanese corporation. 
 “LAST DRAWDOWN DATE” means February 12, 2021.

 “LETTER OF GUARANTEE” means the letter of guarantee executed by each GUARANTOR and required to be delivered by the BORROWER to
the BANK pursuant to SECTION 3.01 hereof, together with all exhibits and schedules thereto, as the same may be supplemented, modified, amended, restated or replaced from time to time in the manner provided therein. 

“LIEN” means any mortgage, deed of trust, pledge, security interest, assignment, deposit arrangement, charge or encumbrance, lien
(statutory or other), or other preferential arrangement (including any conditional sale or other title retention agreement, any financing lease having substantially the same economic effect as any of the foregoing, or any agreement to give any
security interest). 
 “LOAN” has the meaning assigned to such term in SECTION 2.01. 

  
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 “LOAN DOCUMENTS” means this AGREEMENT, the NOTE, each LETTER OF GUARANTEE, and any
other agreement, document, instrument, or contract furnished to the BANK in connection with any of the foregoing documents or supporting, securing, or otherwise relating to the LOANS, in each case as amended, amended and restated, supplemented, or
otherwise modified from time to time. 
 “MARGIN STOCK REGULATIONS” means Regulation T, U and/or X of the Board of Governors of
the Federal Reserve System and the rules promulgated thereunder, as the same may be supplemented, modified, amended, restated, or replaced from time to time, or any corresponding or succeeding provisions of applicable law. 

“MATERIAL ADVERSE CHANGE” means any material adverse change in (a) the business, results of operations, properties, assets,
liabilities, condition (financial or otherwise), or prospects of the BORROWER, or the BORROWER and its SUBSIDIARIES taken as one enterprise; (b) the legality, validity, binding effect, or enforceability of any LOAN DOCUMENT; (c) the
ability of the BORROWER to fully and timely perform its obligations under any LOAN DOCUMENT, as determined from the perspective of a reasonable person in the BANK’s position; or (d) the rights, remedies, and benefits available to, or
conferred upon, the BANK under any LOAN DOCUMENT. 
 “MATURITY DATE” means, in relation to a LOAN, the date on which such LOAN is
due and payable, as requested by the BORROWER and agreed to by the BANK in accordance with SECTION 2.03. 
 “NOTE” has the meaning
assigned to such term in SECTION 2.05. 
 “PERSON” means an individual, partnership, corporation (including a business trust),
joint stock company, estate, trust, limited liability company, unlimited liability company, unincorporated association, joint venture, or other entity or GOVERNMENTAL AUTHORITY. 

“PRIME RATE” means the rate of interest per annum established by the BANK’s New York Branch from time to time as its prime rate
or base rate; each change in the PRIME RATE shall be effective from and including the date such change is established as being effective. 

“PROPERTY” means all types of real or personal property, including without limitation, tangible, intangible, or mixed property. 

“SANCTIONS” has the meaning assigned to such term in SECTION 4.10(a). 

“SUBSIDIARY” means, with respect to any PERSON (the “parent”) at any date, any corporation, limited liability company,
partnership, association, or other entity the accounts of which would be consolidated with those of the parent in the parent’s consolidated financial statements if such financial statements were prepared in accordance with GAAP as of such date,
as well as any other corporation, limited liability company, partnership, association or other entity (a) of which securities or other ownership interests representing more than 50% of the equity or more than 50% of the ordinary voting power
or, in the case of a partnership, more than 50% of the general partnership interests are, as of such date, owned, controlled or held, or (b) that is, as of such date, otherwise controlled, by the parent or one or more subsidiaries of the parent
or by the parent and one or more subsidiaries of the parent. 

  
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 ARTICLE II. 

AMOUNT AND TERMS OF LOANS 

SECTION 2.01 REVOLVING CREDIT. The BANK may, upon request from the BORROWER, in the BANK’s sole and absolute discretion upon the terms and
subject to the conditions hereinafter set forth, make one or more loans (each, a “LOAN”) to the BORROWER from time to time during the period commencing on the date of this AGREEMENT and ending on (and including) the LAST DRAWDOWN DATE in
an aggregate principal amount not to exceed at any time outstanding TWENTY MILLION DOLLARS (US$20,000,000.00), provided that such amount may be reduced pursuant to SECTION 2.02 hereof (the “CREDIT LINE”). Each LOAN shall have a MATURITY
DATE that is not less than one (1) day and not more than twelve (12) months after the DISBURSEMENT DATE, as requested by the BORROWER in accordance with SECTION 2.03 and agreed to by the BANK. Subject to the terms and conditions hereof,
the BORROWER may borrow, repay in whole or in part, and reborrow on a revolving basis, up to the amount of the CREDIT LINE. The availability of the CREDIT LINE hereunder shall not be construed as the commitment of the BANK to make any LOAN. 

SECTION 2.02 REDUCTION AND TERMINATION OF CREDIT LINE. The BANK shall have the unrestricted right in its sole and absolute discretion, upon notice
to the BORROWER, to immediately terminate in whole or reduce in part the unused portion of the CREDIT LINE. 
 SECTION 2.03 NOTICE AND MANNER OF
BORROWING. Not later than 2:00 p.m., New York time on the requested DISBURSEMENT DATE, the BORROWER shall give the BANK telephonic application for each LOAN under this AGREEMENT to the BANK’s JDAD Loan Services Department (or such other
contact as the BANK may inform the BORROWER from time to time), which may or may not be accepted by the BANK, specifying (i) the DISBURSEMENT DATE; (ii) the principal amount; and (iii) the MATURITY DATE. The BANK will send written
confirmation of the LOAN to the BORROWER at the fax number or email address listed in SECTION 8.06 hereof. The BORROWER will acknowledge the information shown in the confirmation by promptly returning it to the BANK’s New York Branch by fax at
(212) 224-4537. Not later than 4:00 p.m., New York time, on the DISBURSEMENT DATE of the LOAN and upon fulfillment of the applicable conditions set forth in ARTICLE III hereof, the BANK will, subject to its
sole and absolute discretion and subject to the provisions of SECTION 2.01 hereof, make the LOAN available to the BORROWER in immediately available funds by crediting the amount thereof to the BORROWER’s account with the BANK, or to such other
account as the BORROWER shall inform the BANK in writing. All notices given under this SECTION 2.03 shall be irrevocable. The failure to give any confirmation referred to herein shall not release or diminish any of the BORROWER’s obligations
hereunder. 
 SECTION 2.04 REPAYMENT OF PRINCIPAL; PAYMENT OF INTEREST. 

(a) The entire principal amount of each LOAN shall be paid in immediately available funds on the MATURITY DATE for such LOAN. 

  
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 (b) Each LOAN will bear interest on the outstanding principal amount thereof at a rate
per annum equal to the APPLICABLE INTEREST RATE. 
 (c) Accrued interest on each LOAN will be payable in arrears on the MATURITY DATE
for such LOAN; provided that (i) interest accrued pursuant to SECTION 2.04(d) will be payable on demand, and (ii) in the event of any repayment or prepayment of any LOAN, accrued interest on the principal amount repaid or prepaid
will be payable on the date of such repayment or prepayment. 
 (d) If any EVENT OF DEFAULT under SECTION 7.01(1) or 7.01(2) hereof has
occurred and is continuing then, until such defaulted amount has been paid in full, to the extent permitted by law, such defaulted amounts will bear interest (after as well as before judgment), payable on demand, at a rate per annum equal to
the PRIME RATE plus 2%. 
 (e) All interest hereunder will be computed on the basis of a year of 360 days and will be payable for the
actual number of days elapsed (including the first day, but excluding the last day). 
 SECTION 2.05 NOTE. As additional evidence of the
BORROWER’s payment obligations hereunder, the BORROWER shall execute and deliver to the BANK pursuant to SECTION 3.01(1) a single grid promissory note (the “NOTE”), substantially in the form of EXHIBIT A attached hereto,
setting forth the CREDIT LINE as the maximum principal amount thereof and dated as of the date of this AGREEMENT, and made payable to the BANK. The BORROWER hereby authorizes the BANK to record on a schedule attached to the NOTE (or any similar form
designated by the BANK in its sole and absolute discretion from time to time, which may be maintained in its internal records and shown on a computer printout) the principal amount, APPLICABLE INTEREST RATE, MATURITY DATE, and other terms relevant
to each LOAN, and any such recordation shall be prima facie evidence of the accuracy of the information so recorded; provided that the BANK’s failure so to record shall not limit or otherwise affect the obligations of the BORROWER hereunder and
under the NOTE to repay the principal of and interest on the LOANS. 
 SECTION 2.06 FUNDING LOSS, INDEMNIFICATION; CAPITAL ADEQUACY AND OTHER
CHARGES AND COSTS. 
 (a) The BORROWER hereby agrees to indemnify and hold the BANK free and harmless from all losses, costs, and
expenses that the BANK may incur, to the extent not mitigated by the redeployment of deposits or other funds, as a result of (i) a default by the BORROWER in payment when due of the principal of or interest on a LOAN, (ii) the
BORROWER’s failure (other than due solely to a failure attributable to a default by the BANK) to make a borrowing or continuation with respect to a LOAN after making a request therefor, (iii) a prepayment (whether mandatory or otherwise,
including but not limited to, acceleration pursuant to ARTICLE VII hereof) of a LOAN before a scheduled payment date for interest or principal, or (iv) any DEFAULT or EVENT OF DEFAULT by the BORROWER under this AGREEMENT or any demand by the
BANK for payment of any LOAN permitted hereunder or under the NOTE. 

  
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 (b) If the BANK determines at any time that any applicable law or governmental rule,
regulation, guideline, or order concerning capital adequacy, reserves, or similar requirements, or any change in interpretation or administration thereof by any GOVERNMENTAL AUTHORITY will have the effect of increasing the cost to the BANK or the
amount of capital required or expected to be maintained by the BANK as a result of the making or continuance of the LOANS, then the BORROWER agrees to pay to the BANK, upon its written demand therefor, such additional amounts as shall be required to
compensate the BANK for such increased costs. The BANK, upon determining that any additional amounts will be payable to the BANK pursuant to this paragraph, will give prompt written notice thereof to the BORROWER, which notice shall show in
reasonable detail the basis for calculation of such additional amounts, although the failure to give any such notice shall not release or diminish the obligations of the BORROWER to pay additional amounts pursuant to this paragraph. 

(c) If any present or future applicable law, rule, or regulation or any change therein or in the interpretation or administration thereof by
any GOVERNMENTAL AUTHORITY charged with the interpretation or administration thereof, or compliance by the BANK with any request or directive of any such GOVERNMENTAL AUTHORITY, whether or not having the force of law, results in an increase of the
cost to the BANK of making, renewing, or maintaining any LOAN, or reduces the amount of any sum receivable by the BANK under any LOAN, in the reasonable judgment of the BANK, then, upon demand by the BANK, the BORROWER agrees to pay to the BANK such
additional amount or amounts as would compensate the BANK for such increased cost or reduction. The BANK’s computation of such amount or amounts shall be binding on the BORROWER absent manifest error. 

SECTION 2.07 METHOD OF PAYMENT. The BORROWER shall make each payment of principal of and interest on the LOANS, in lawful money of the United
States in immediately available funds, not later than 3:00 p.m. (New York time) on the date when such payment is due, via Fedwire or CHIPS to the account described below, or to such other location or in such other manner as the BANK may notify the
BORROWER in writing: 
  

					
		 	 Bank Name:
	  	Sumitomo Mitsui Banking Corp., New York
		 	 SWIFT:
	  	SMBCUS33
		 	 ABA Number:
	  	0260-0967-4
		 	 Account Name:
	  	SMBC Loan Operations New York
		 	 Account Number:
	  	423001
		 	 Reference:
	  	Thorne Holding Corp.
		 	 Attn:
	  	BCDAD JDAD Loan Services

 The BORROWER hereby authorizes the BANK to charge any amounts due hereunder or under the NOTE from time to time against the
BORROWER’s account #351905 or any other account of the BORROWER with the BANK. The BORROWER may, with the BANK’S prior consent, and on not less than five days’ notice, prepay the principal and interest of any LOAN in whole or in part,
but only on condition that the prepayment is accompanied by payment of any and all additional costs, as determined by the BANK, that the BANK may incur as a result of such prepayment, including, without limitation, the breaking of any deposit, the
redeployment of funds released by any prepayment, the termination of any swap or hedging contract, or otherwise. 

  
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 SECTION 2.08 PAYMENTS ON NON-BUSINESS DAYS. Whenever
payment shall fall due on a day which is not a BUSINESS DAY, payment shall be made on the next succeeding BUSINESS DAY, unless such BUSINESS DAY falls in the following calendar month, in which case payment shall be due on the next preceding BUSINESS
DAY. 
 ARTICLE III. 

CONDITIONS PRECEDENT 

SECTION 3.01 CONDITIONS PRECEDENT TO INITIAL AND ALL LOANS. The BANK may in its sole and absolute discretion make LOANS available to the BORROWER,
subject to the BANK’s receipt of the following, each of which shall be in form and substance satisfactory to the BANK: 
 (1) AGREEMENT
AND NOTE. This AGREEMENT and the NOTE, each duly executed by the BORROWER. 
 (2) EVIDENCE OF ALL CORPORATE ACTION BY THE BORROWER.
Certified copies of the unanimous written consent of the Board of Directors of the BORROWER or a certified copy of the resolutions duly adopted by the Board of Directors authorizing the execution, delivery, and performance of this AGREEMENT, the
NOTE, and any other documents to be delivered pursuant to this AGREEMENT. 
 (3) INCUMBENCY AND SIGNATURE CERTIFICATE OF THE BORROWER. A
certificate of the President or Vice President (or other appropriate officer) of the BORROWER certifying the names and true signatures of the officers of the BORROWER authorized, pursuant to the Board of Directors’ resolutions referred to in
paragraph (2) above, to sign this AGREEMENT, the NOTE, and any other documents to be delivered by the BORROWER pursuant to this AGREEMENT. 

(4) BENEFICIAL OWNERSHIP CERTIFICATION. At least five days prior to the first DISBURSEMENT DATE, a BENEFICIAL OWNERSHIP CERTIFICATION in
relation to the BORROWER. 
 (5) LETTERS OF GUARANTEE. The LETTER OF GUARANTEE duly executed by each GUARANTOR. 

ARTICLE IV. 

REPRESENTATIONS AND WARRANTIES 

The BORROWER hereby represents and warrants to the BANK as follows at each time it makes an application for a LOAN: 

SECTION 4.01 DUE INCORPORATION; GOOD STANDING. The BORROWER is a corporation, duly organized and validly existing under the laws of the
jurisdiction of its incorporation, and is properly licensed and in good standing in, and where necessary to maintain the BORROWER’s rights and privileges, has complied with the fictitious name statute of, every jurisdiction in which the
BORROWER is doing business. 

  
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 SECTION 4.02 CORPORATE POWER; AUTHORIZATION. The execution and delivery of this AGREEMENT, the
NOTE, and each other LOAN DOCUMENT to which it is a party and the performance of its obligations hereunder and thereunder are within the BORROWER’s corporate powers, have been duly authorized, and will not contravene or conflict with its
charter or bylaws (or such other organizational and governing documents as may be applicable) or any agreement, instrument, or document to which the BORROWER is a party or by which the BORROWER or any of its PROPERTY is bound or affected. 

SECTION 4.03 GOVERNMENT ACTION. No approval, consent, exemption, or other action by, or notice to or filing with, any GOVERNMENTAL AUTHORITY is
necessary in connection with the execution, delivery, performance, or enforcement of this AGREEMENT, the NOTE, or any other LOAN DOCUMENT, except as may have been obtained and certified copies of which have been delivered to BANK. 

SECTION 4.04 NO LEGAL BAR. There is no law, rule, or regulation, nor is there any judgment, decree, or order of any court or GOVERNMENTAL
AUTHORITY binding on the BORROWER that would be contravened by the execution, delivery, performance, or enforcement of this AGREEMENT, the NOTE, or any other LOAN DOCUMENT. 

SECTION 4.05 ENFORCEABLE OBLIGATION. This AGREEMENT is a legal, valid, and binding agreement of the BORROWER, enforceable against the BORROWER in
accordance with its terms, and the NOTE and each other LOAN DOCUMENT to which the BORROWER is a party, when executed and delivered (and as endorsed from time to time), will be similarly legal, valid, binding, and enforceable. 

SECTION 4.06 LITIGATION. Except as previously disclosed to the BANK in writing, there are no legal actions or other proceedings pending or, to the
best of the BORROWER’s knowledge, threatened against the BORROWER which, individually or in the aggregate, could reasonably be expected to result in a MATERIAL ADVERSE CHANGE. There are no outstanding and unsatisfied final judgments or decrees
against the BORROWER for money damages, fines, or penalties which, individually or in the aggregate, could result in a MATERIAL ADVERSE CHANGE. 

SECTION 4.07 NO DEFAULT. No event has occurred and is continuing or would result from the incurring of obligations by the BORROWER under this
AGREEMENT, the NOTE, or any other LOAN DOCUMENT that is a default under any agreement or document to which the BORROWER is a party or which, with the passing of time or giving of notice or both, would become a default under any such document. 

SECTION 4.08 NO CONFLICTING AGREEMENTS. Except as disclosed in writing by the BORROWER to the BANK prior to the date hereof, the BORROWER is not
in default under any agreement to which it is a party or by which it or any of its PROPERTY is bound, the effect of which, individually or in the aggregate, could reasonably be expected to result in a MATERIAL ADVERSE CHANGE. 

  
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 SECTION 4.09 TAXES. The BORROWER has filed or caused to be filed all tax returns required to be
filed, and has paid, or has made adequate provision for the payment of, all taxes shown to be due and payable on said returns or in any assessments made against it, and no tax liens have been filed and no claims are being asserted with respect to
such taxes that are required to be reflected in the financial statements of the BORROWER and are not so reflected therein. 
 SECTION 4.10
COMPLIANCE WITH LAW. 
 (a) None of the BORROWER, any of its SUBSIDIARIES or, to the knowledge of the BORROWER, any director,
officer, employee, or agent of the BORROWER or any of its SUBSIDIARIES is a PERSON that is, or is owned or controlled by PERSONS that are: (i) the subject of any sanctions administered or enforced by the U.S. Department of the Treasury’s
Office of Foreign Assets Control (OFAC), the U.S. Department of State, the United Nations Security Council, the European Union, Her Majesty’s Treasury, the Japanese government, including those imposed under the Foreign Exchange Act and the
Import Trade Control Order of Japan (Cabinet Order No. 414 of 1949, as amended), or other relevant sanctions authority (collectively, “SANCTIONS”), or (ii) located, organized, or resident in a country or territory that is the
subject of SANCTIONS, including Crimea, Cuba, Iran, North Korea, and Syria, except as previously disclosed to the BANK. 
 (b) The BORROWER,
its SUBSIDIARIES, and their respective directors, officers, employees, and agents are in compliance with (i) all applicable SANCTIONS and (ii) the FCPA and all other applicable anti-corruption laws. 

(c) The BORROWER and its SUBSIDIARIES have instituted and maintain policies and procedures designed to ensure compliance with
(i) applicable SANCTIONS and (ii) the FCPA and all other applicable anti-corruption laws. 
 SECTION 4.11 NO MISREPRESENTATION.
Neither this AGREEMENT, nor any other LOAN DOCUMENT, nor any certificate, notice, report, financial statement, or document furnished to date or to be furnished by the BORROWER in connection with the transactions contemplated hereby contains or will
contain a misrepresentation or misstatement of material fact, or omits or will omit to state a material fact required to be stated in order to make the statements herein or therein contained (taken as a whole) not misleading in the light of the
circumstances under which made. 
 SECTION 4.12 RANKING OF LOAN; LIENS. The payment obligations of the BORROWER under this AGREEMENT and the
NOTE are and will at all times be unsubordinated general obligations of the BORROWER, and rank and will at all times rank at least pari passu with all other present and future unsubordinated unsecured indebtedness of the BORROWER. 

  
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 ARTICLE V. 

AFFIRMATIVE COVENANTS 

So long as any indebtedness or obligation remains unpaid or outstanding hereunder, the BORROWER will: 

SECTION 5.01 FINANCIAL AND OTHER INFORMATION. Deliver to the BANK such information respecting the business, properties, assets, liabilities,
condition (financial or otherwise), operations, or prospects of the BORROWER as the BANK may from time to time reasonably request, including: 

(a) as soon as available and in any event within 120 days after the end of each fiscal year of the BORROWER, its consolidated audited annual
financial statements, which shall include at least its balance sheet and related statements of operations, stockholders’ equity and cash flow as of the end of and for such year, setting forth in comparative form the figures for the previous
fiscal year, all reported on by independent public accountants of recognized national standing to the effect that such financial statements present fairly in all material respects the financial condition and results of operations of the BORROWER and
its consolidated subsidiaries on a consolidated basis in accordance with GAAP consistently applied; 
 (b) if available, as soon as
available and in any event within 90 days after the end of the first semiannual reporting period of each fiscal year of the BORROWER, its consolidated semiannual financial statements, which shall include at least its balance sheet and related
statements of operations, stockholders’ equity and cash flow as of the end of and for such period setting forth in comparative form the figures for the corresponding period of the previous fiscal year, presenting fairly in all material respects
the financial condition and results of operations of the BORROWER and its consolidated subsidiaries on a consolidated basis in accordance with GAAP consistently applied (except as differences from GAAP shall have been disclosed to, and approved by,
the BANK), subject to normal year-end adjustments and the absence of footnotes; and 
 (c)
concurrently with any delivery of financial statements under clause (a) above, a certificate of a responsible financial officer of the BORROWER, in the form of EXHIBIT B attached hereto, certifying to such officer’s knowledge whether a
DEFAULT or EVENT OF DEFAULT has occurred and, if a DEFAULT or EVENT OF DEFAULT has occurred, specifying the details thereof and any action taken or proposed to be taken with respect thereto. 

SECTION 5.02 NOTICE. Promptly notify the BANK in writing of 

(1) all litigation affecting the BORROWER as a defendant where the amount claimed in a single litigation action is in excess of $100,000 or
when the aggregate amount claimed in all litigation actions is in excess of $500,000; 
 (2) any substantial dispute between the BORROWER
and any GOVERNMENTAL AUTHORITY; 
 (3) any DEFAULT or EVENT OF DEFAULT; and 

(4) any other matters which, individually or in the aggregate, have resulted or could reasonably be expected to result in a MATERIAL ADVERSE
CHANGE. 
 SECTION 5.03 PAYMENT OF OBLIGATIONS. Pay all obligations, including taxes, when due, except such as may be contested in good faith by
appropriate proceedings and for which the BORROWER has established reserves on its books which are reasonable and adequate. 

  
 -10- 

 SECTION 5.04 COMPLIANCE WITH LEGAL REQUIREMENTS. 

(a) Maintain in effect policies and procedures designed to ensure compliance by the BORROWER, its SUBSIDIARIES, and their respective
directors, officers, employees, and agents with (i) applicable SANCTIONS and (ii) the FCPA and any other applicable anti-corruption laws. 

(b) At all times comply with all laws, rules, regulations, orders, and directions of any GOVERNMENTAL AUTHORITY having jurisdiction over it or
its business. 
 SECTION 5.05 MAINTAIN EXISTENCE; PROPERTY. Maintain and preserve (i) its existence as a legal entity and all rights,
privileges and franchises now enjoyed; and (ii) all of its PROPERTIES that are used or useful in the conduct of its business in good working order and condition, ordinary wear and tear excepted. 

SECTION 5.06 BOOKS AND RECORDS. Maintain adequate books, accounts, and records, all in accordance with GAAP, and permit employees or agents of
BANK, at any reasonable time and as often as may reasonably be desired, to inspect its PROPERTIES, and to examine or audit its books, accounts, and records and make copies thereof and to discuss the business, operations, PROPERTIES, and financial
and other conditions of the BORROWER with officers of the BORROWER. 
 SECTION 5.07 INSURANCE. To the extent there exists any real property
security interest, maintain and keep in force, on all of its property such insurance as is normal for the industry in which the BORROWER conducts its business and is satisfactory to BANK as to amount, nature, and carrier, covering fire damage
(including use and occupancy), public liability, product liability, property damage, and workers’ compensation, and deliver to BANK upon request a schedule certified to be correct by a responsible officer of the BORROWER setting forth all
insurance in force as of the date of such schedule. 
 SECTION 5.08 FURTHER ASSURANCES. The BORROWER will from time to time perform any and all
acts and execute any and all additional documents as may be reasonably requested by BANK to give effect to the purposes of this AGREEMENT, the NOTE, and the other LOAN DOCUMENTS, if any. 

ARTICLE VI. 
 NEGATIVE
COVENANTS 
 So long as any indebtedness or obligation remains unpaid or outstanding hereunder, the BORROWER hereby agrees as
follows: 
 SECTION 6.01 LIMITATIONS ON FUNDAMENTAL CHANGES. The BORROWER will not merge into or consolidate with any other PERSON, or permit
any other PERSON to merge into or consolidate with it, or sell, transfer, lease or otherwise dispose of (in one transaction or in a series of transactions) all or substantially all of its assets (in each case, whether now owned or hereafter
acquired), or liquidate or dissolve. 
 SECTION 6.02 USE OF PROCEEDS. 

(a) No part of the proceeds of any LOAN will be used to buy or carry, or to extend credit to any other PERSON to buy or carry, any
“margin stock” (as defined in Regulation U of the Board of Governors of the United States Federal Reserve System) in violation of MARGIN STOCK REGULATIONS. 

  
 -11- 

 (b) The BORROWER will not request any LOAN, and the BORROWER shall not use, and the BORROWER
will procure that its SUBSIDIARIES and its or their respective directors, officers, employees and agents will not use, the proceeds of any LOAN (i) to fund any activities or business of or with any PERSON, or in any country or territory, that,
at the time of such funding, is the subject of SANCTIONS, or (ii) in any other manner that would result in a violation of SANCTIONS applicable to any party hereto. 

(c) No part of the proceeds of the LOANS will be used, directly or indirectly, in furtherance of an offer, payment, promise to pay, or
authorization of the payment or giving of money, or anything else of value, to any PERSON in violation of the FCPA or any other applicable anti-corruption law. 

SECTION 6.03 NEGATIVE PLEDGE. The BORROWER will not create, incur, assume, or suffer to exist any LIEN upon or with respect to any of its
PROPERTY, whether now owned or hereafter acquired, other than: 
 (a) LIENS imposed by any GOVERNMENTAL AUTHORITY for taxes, assessments, or
charges not yet due or which are being contested in good faith and by appropriate proceedings if adequate reserves with respect thereto are maintained on the books of the BORROWER in accordance with GAAP; and 

(b) easements, rights-of-way, restrictions, and other similar
encumbrances incurred in the ordinary course of business and encumbrances consisting of zoning restrictions, easements, licenses, restrictions on the use of property, or minor imperfections in title thereto which, in the aggregate, are not material
in amount, and which do not in any case materially detract from the value of the property subject thereto or interfere with the ordinary conduct of the business of the BORROWER. 

ARTICLE VII. 
 EVENTS
OF DEFAULT 
 SECTION 7.01 EVENTS OF DEFAULT. The occurrence of any of the following events will constitute an EVENT OF DEFAULT under
this AGREEMENT and the NOTE: 
 (1) The BORROWER fails to pay any principal of any LOAN when and as the same becomes due and payable, whether
at the due date thereof or at a date fixed for prepayment thereof or otherwise. 
 (2) The BORROWER fails to pay any interest on any LOAN or
any fee or any other amount (other than an amount referred to in SECTION 7.01(1)) payable under this AGREEMENT or any other LOAN DOCUMENT when and as the same shall become due and payable, and such failure continues unremedied for a period of ten
(10) days. 

  
 -12- 

 (3) Any representation or warranty made or deemed made by or on behalf of the BORROWER in or
in connection with this AGREEMENT or any of the other LOAN DOCUMENTS, or in any amendment hereof or thereof, or in any report, certificate, financial statement or other document furnished pursuant to or in connection with this AGREEMENT or any other
LOAN DOCUMENT or any amendment hereof or thereof, proves to have been false or misleading in any material respect when made or deemed made. 

(4) The BORROWER (i) fails to pay its debts generally as they come due, (ii) conceals, removes, or transfers any of its PROPERTY in
violation or evasion of any bankruptcy, fraudulent conveyance, or similar law, (iii) makes a general assignment for the benefit of its creditors, (iv) applies for or consents to the appointment of a receiver, trustee, assignee, custodian,
sequestrator, liquidator, or similar official for itself or any of its PROPERTY, (v) files any petition or action for relief under any bankruptcy, reorganization, insolvency, or moratorium law, or any other law or laws for the relief of, or
relating to, debtors, (vi) is adjudicated a bankrupt or insolvent or (vii) takes any action for the purpose of effecting any of the foregoing. 

(5) An involuntary petition is filed under any bankruptcy, reorganization, insolvency, moratorium, or similar statute against the BORROWER or
a custodian, receiver, trustee, or assignee for the benefit of creditors (or other similar official) is appointed to take possession, custody, or control of any PROPERTY of the BORROWER unless such petition or appointment is set aside or withdrawn
or ceases to be in effect within 30 days from the date of said filing or appointment. 
 (6) One or more judgments for the payment of money
in an aggregate amount in excess of $250,000 shall be rendered against the BORROWER (or any combination thereof), and the same shall remain undischarged for a period of ten (10) consecutive days during which execution is not effectively stayed,
or any action is legally taken by a judgment creditor to attach or levy upon any assets of the BORROWER to enforce any such judgment. 
 (7)
All, or such as in the opinion of BANK constitutes substantially all, of the PROPERTIES of the BORROWER is condemned, seized, or appropriated. 

(8) The BORROWER fails to observe or perform any covenant, condition, or agreement contained in (i) SECTION 5.02(3), SECTION 5.05(i),
SECTION 5.04(a), or ARTICLE VI; or (ii) any other provision of this AGREEMENT or the NOTE (and not described in SECTIONS 7.01(1) or (2)) and such failure is not remediable or, if remediable, continues unremedied for a period of 30 days after
the earlier of (x) the date the BORROWER becomes aware thereof or (y) the date the BANK gives notice to the BORROWER with respect thereto. 

(9) The BORROWER is in breach of or default under any term, condition, provision or covenant contained in any agreement to which it is a party
relating to borrowed money. 
 (10) Any LETTER OF GUARANTEE or any other document issued in support of the obligations of the BORROWER to
the BANK, or any replacement of any of the foregoing, expires without renewal, is disclaimed or disavowed, or, in the case of a guarantee, ceases to be the valid, binding and enforceable obligation of the guarantor thereunder, or the issuer fails to
observe or perform any covenant, undertaking, or other obligation thereunder. 
 (11) A CHANGE OF CONTROL occurs. 

  
 -13- 

 (12) Any one or more events occur or conditions exist that, individually or in the
aggregate, have resulted in or could reasonably be expected to result in a MATERIAL ADVERSE CHANGE. 
 SECTION 7.02 REMEDIES. Upon the
occurrence of any EVENT OF DEFAULT (other than an event described in SECTION 7.01(4) or 7.01(5)), the BANK may, by notice to the BORROWER, declare the LOANS then outstanding to be due and payable in whole (or in part, in which case any
principal not so declared to be due and payable may thereafter be declared to be due and payable), and thereupon the principal of the LOANS so declared to be due and payable, together with accrued interest thereon and all fees and other obligations
of the BORROWER accrued hereunder, will become due and payable immediately, without presentment, demand, protest or other notice of any kind, all of which are hereby waived by the BORROWER; and in case of any event described in SECTION 7.01(4)
or 7.01(5), the principal of the LOANS then outstanding, together with accrued interest thereon and all fees and other obligations of the BORROWER accrued hereunder, will automatically become due and payable, without presentment, demand, protest or
other notice of any kind, all of which are hereby waived by the BORROWER. The foregoing remedies are in addition to any and all other remedies available to BANK under this AGREEMENT, the NOTE, or any other LOAN DOCUMENT, at law, or in equity. The
BORROWER hereby agrees to indemnify the BANK and save the BANK harmless from and against any and all costs, losses, or expenses incurred by the BANK as a result of the occurrence of an EVENT OF DEFAULT or the repayment of any amount hereunder or
under the NOTE other than on the date or dates originally due (including without limitation such as are incurred in connection with the reemployment or liquidation of funds acquired from third parties (including affiliates) by the BANK in order to
maintain any amount theretofore outstanding hereunder or under the NOTE, the termination of any hedging contract or swap or other arrangement relating to the funding of the LOANS). 

ARTICLE VIII. 

MISCELLANEOUS 
 SECTION 8.01
INDEMNITY. The BORROWER hereby agrees to indemnify, defend, reimburse, and hold harmless BANK and each of its affiliates, and all the directors, officers, employees, agents, legal counsel, and advisors of BANK (each, an “INDEMNIFIED
PARTY”) from and against all claims, actions, proceedings, suits, damages, losses, liabilities, costs, and expenses, including the fees and out-of-pocket expenses
of counsel that may be incurred by or asserted against any INDEMNIFIED PARTY in connection with, or arising out of, or relating to any transaction or proposed transaction (whether or not consummated), contemplated by this AGREEMENT or any LOAN
DOCUMENT. 
 SECTION 8.02 SUCCESSORS AND ASSIGNS; ASSIGNMENTS; PARTICIPATIONS. This AGREEMENT shall be binding upon and inure to the benefit of
the BORROWER and the BANK and their respective successors and assigns, except that the BORROWER may not assign or transfer any of its rights or obligations under any LOAN DOCUMENT without the prior written consent of the BANK. The BANK may assign or
transfer to any other PERSON all or part of the CREDIT LINE or the indebtedness of the BORROWER outstanding under this AGREEMENT and/or any LOAN DOCUMENT. The BANK may at any time sell or grant participations in all or part of the LOANS or the
CREDIT LINE. 

  
 -14- 

 SECTION 8.03 ENTIRE AGREEMENT. This AGREEMENT and the LOAN DOCUMENTS integrate all the terms and
conditions mentioned herein or incidental hereto, and supersede all oral negotiations and prior writings with respect to the subject matter hereof. 

SECTION 8.04 COUNTERPARTS. This AGREEMENT and any amendments, waivers, consents, or supplements may be executed in as many counterparts as may be
deemed necessary or convenient, and by the different parties hereto on separate counterparts, each of which, when so executed, shall be deemed an original, but all such counterparts shall constitute but one and the same agreement. 

SECTION 8.05 AMENDMENTS, ETC. No amendment, modification, termination, or waiver of any provision of any LOAN DOCUMENT to which the BORROWER is a
party, nor consent to any departure by the BORROWER from any such provision, shall in any event be effective unless the same shall be in writing and signed by the BANK, and then such amendment, modification, termination, waiver, or consent shall be
effective only in the specific instance and for the specific purpose for which it is given. 
 SECTION 8.06 NOTICES, ETC. All notices and other
communications provided for under this AGREEMENT shall be in writing, delivered in person, or sent by overnight courier, first class mail (postage prepaid), fax or email to: 
  

			
	 If to the BORROWER:
	  	Thorne Holding Corp.
		  	620 Omni Industrial Boulevard
		  	Summerville, South Carolina 29486
		  	Attention: Mr. Scott Wheeler, Chief Financial Officer
		  	Telephone: (843) 501-0286
		  	email: swheeler@Thorne.com
		
	 If to the BANK:
	  	Sumitomo Mitsui Banking Corporation
		  	277 Park Avenue
		  	New York, New York 10172
		  	Attention: JDAD
		  	Telephone: (212) 224-4000
		  	Fax: (212) 593-9514

 or at such other address as shall be designated by either party in a written notice to the other party complying as to
delivery with the terms of this SECTION 8.06. All such notices and communications shall be effective when deposited in the mails, faxed, or emailed, as applicable, except that notices to the BANK pursuant to the provisions of ARTICLE II hereof shall
be effective when received by the BANK. 
 SECTION 8.07 NO WAIVER; REMEDIES. No failure on the part of the BANK to exercise, and no delay in
exercising, any right, power, or remedy under any LOAN DOCUMENT shall operate as waiver thereof; nor shall any single or partial exercise of any right under any LOAN DOCUMENT preclude any other or further exercise thereof or exercise of any other
right. The remedies provided in the LOAN DOCUMENTS are cumulative and not exclusive of any remedies provided by law. 

  
 -15- 

 SECTION 8.08 COSTS, EXPENSES. AND TAXES. The BORROWER hereby agrees to pay on demand after
giving borrowing written notice of the demand (i) all reasonable out-of-pocket expenses incurred by the BANK and its affiliates, including the reasonable fees,
charges, and disbursements of counsel for the BANK, in connection with the preparation, negotiation, execution, delivery, and administration of the LOAN DOCUMENTS and any amendments, waivers, or other modifications of the provisions of any LOAN
DOCUMENT (whether or not the transactions contemplated by the LOAN DOCUMENTS are consummated); and (ii) all out-of-pocket expenses incurred by the BANK, including
the fees, charges, and disbursements of any counsel for the BANK, in connection with the enforcement or protection of its rights (A) in connection with the LOAN DOCUMENTS, including its rights under this SECTION 8.08, or (B) in connection
with the LOANS, including all such out-of-pocket expenses incurred in connection with any restructuring, workout, or negotiations in respect of the LOAN DOCUMENTS or the
LOANS. In addition, the BORROWER shall pay any and all stamp and other taxes and fees payable or determined to be payable in connection with the execution, delivery, filing, and recording of any of the LOAN DOCUMENTS and the other documents to be
delivered under any of the LOAN DOCUMENTS, and agrees to save the BANK harmless from and against any and all liabilities with respect to or resulting from any delay in paying or omission to pay such taxes and fees. 

SECTION 8.09 DEDUCTIONS. All payments by the BORROWER to the BANK under this AGREEMENT or under the NOTE are to be made net and free of any and
all taxes (except for taxes based upon the overall net income of the BANK), duties, imposts, fees, withholdings, or deductions (the “DEDUCTIONS”) of any nature now or hereafter imposed. If any DEDUCTION is, by law, required to be made from
any payment hereunder, then the BORROWER shall pay to the BANK such additional amount as will result in receipt by the BANK of a net amount equal to the amount the BANK would have received hereunder had no such DEDUCTION been required. In such event
the BORROWER shall, as soon as practical, deliver to the BANK a receipt issued by the relevant taxing authority evidencing the amount of such DEDUCTION and its payment. If the BORROWER is required to pay an additional amount on account of any such
DEDUCTION, the BORROWER shall have the right, on not less than three BUSINESS DAYS’ prior written notice to the BANK, to repay the applicable LOAN. 

SECTION 8.10 RIGHT OF SET OFF. Upon the occurrence and during the continuance of any EVENT OF DEFAULT the BANK is hereby authorized at any time
and from time to time, without notice to the BORROWER (any such notice being expressly waived by the BORROWER to the fullest extent permitted by applicable law), to set off and apply any and all deposits (general or special, time or demand,
provisional or final) at any time held, and other indebtedness at any time owing by the BANK to or for the credit or the account of the BORROWER against any and all of the obligations of the BORROWER now or hereafter existing under the AGREEMENT or
the NOTE or any other LOAN DOCUMENT, irrespective of whether or not the BANK shall have made any demand under this AGREEMENT or such other LOAN DOCUMENT and although such obligations may be unmatured. The BANK agrees promptly to notify the BORROWER
after any such set off and application, provided that the failure to give such notice shall not affect the validity of such set off and application. The rights of the BANK under this SECTION 8.10 are in addition to other rights and remedies
(including, without limitation, other rights of set off) which the BANK may have. 

  
 -16- 

 SECTION 8.11 GOVERNING LAW; CONSENT TO JURISDICTION. This AGREEMENT and the NOTE shall be
governed by and construed in accordance with the laws of the State of New York. Any legal action or proceedings with respect to this AGREEMENT against the BORROWER may be brought in the courts of the United States of America or the State of New York
as the BANK may elect, and, by execution and delivery of this AGREEMENT, the BORROWER hereby (i) accepts for itself, generally and unconditionally, the non-exclusive jurisdiction of the aforesaid courts,
(ii) irrevocably agrees to be bound by any judgment of any such court with respect to this AGREEMENT or the NOTE, and (iii) irrevocably waives, to the fullest extent permitted by law, any objection that it may now or hereafter have to the
laying of venue of any suit, action, or proceedings with respect to this AGREEMENT brought in any court of the United States of America or the State of New York located in the City of New York, and further irrevocably waives any claim that any such
suit, action, or proceeding brought in any such court has been brought in an inconvenient forum. In the case of the courts of the United States of America and State of New York the BORROWER hereby agrees to receive service of process in any legal
action or proceedings with respect to this AGREEMENT at its offices set forth in SECTION 8.06. Nothing herein shall affect the right to serve process in any other manner permitted by the law. The BORROWER hereby agrees that the mailing of such
process to the BORROWER shall be deemed personal service and accepted by the BORROWER for any legal action or proceedings with respect to this AGREEMENT. 

SECTION 8.12 SEVERABILITY OF PROVISIONS. Any provision of any LOAN DOCUMENT which is prohibited or unenforceable in any jurisdiction shall, as to
such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions of such LOAN DOCUMENT or affecting the validity or enforceability of such provision in any other jurisdiction. 

SECTION 8.13 HEADINGS. ARTICLE and SECTION headings in this AGREEMENT are for the convenience of reference only and shall not constitute a part of
the applicable LOAN DOCUMENTS for any other purpose. 
 SECTION 8.14 WAIVER OF JURY TRIAL. THE BANK AND THE BORROWER MUTUALLY WAIVE THE RIGHT TO
TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING WITH RESPECT TO THIS AGREEMENT. 
 SECTION 8.15 PATRIOT ACT. The BANK hereby notifies the
BORROWER that pursuant to the requirements of the USA PATRIOT Act (Title III of Pub. L. 107-56) (the “ACT”), it is required to obtain, verify, and record information that identifies each borrower,
guarantor, or grantor (each, a “LOAN PARTY”), which information includes the name and address of each LOAN PARTY and other information that will allow the BANK to identify such LOAN PARTY in accordance with the ACT. 

SECTION 8.16 CONFIDENTIALITY. The BANK agrees to keep confidential any information provided to it by or on behalf of the BORROWER pursuant to or
in connection with the LOAN DOCUMENTS, other than information that has been publicly disclosed or is otherwise publicly available other than in breach of this SECTION 8.16; provided that nothing herein shall prevent the BANK from disclosing any such
information: (i) to any potential assignee of or participant in the LOANS or any actual or prospective counterparty (or its advisors) to any swap 

  
 -17- 

 
or derivative transaction relating to the BORROWER and its obligations which agrees in writing to comply with the provisions of this section; (ii) to its affiliates and the employees,
officers, partners, directors, agents, attorneys, accountants, and other professional advisors of it and its affiliates, provided that such recipients are obligated to keep the information confidential; (iii) upon the request or demand of any
GOVERNMENTAL AUTHORITY having jurisdiction over the BANK, including during the course of periodic examinations and reviews of the BANK; (iv) in connection with the exercise of any remedy hereunder; (v) in connection with any litigation to
which the BANK may be a party; and (vi) if, prior to such information having been so provided or obtained, such information was already in the BANK’s possession on a non-confidential basis without,
to the best of the BANK’s knowledge, a duty of confidentiality to the BORROWER being violated. 
 [signature page follows] 

  
 -18- 

 IN WITNESS WHEREOF, the parties hereto have caused this AGREEMENT to be executed by their
respective officers thereunto duly authorized, as of the date first above written. 
  

			
	THORNE HOLDING CORP.
		
	By:	 	/s/ Scott S Wheeler
		 	Scott S Wheeler
		 	Chief Financial Officer
	
	 SUMITOMO MITSUI BANKING CORPORATION

		
	 By:
	 	 
		 	 Name:

		 	 Title:

  
 -19- 

 EXHIBIT A 

[Form of] 
 UNCOMMITTED
AND REVOLVING CREDIT NOTE 
  

			
	 US$20,000,000.00
 (maximum
amount)
	  	February 14, 2020

 FOR VALUE RECEIVED, the undersigned THORNE HOLDING CORP. (the “BORROWER”), HEREBY UNCONDITIONALLY
PROMISES TO PAY to the order of SUMITOMO MITSUI BANKING CORPORATION (the “BANK”), the principal sum of TWENTY MILLION DOLLARS (US$20,000,000.00) or, if less, the aggregate unpaid principal amount of all LOANS made to the BORROWER pursuant
to the LINE AGREEMENT referred to below, together with interest on the unpaid principal amount of each LOAN from time to time outstanding hereunder at the rates, and payable in the manner and on the dates, specified in the LINE AGREEMENT, the
provisions of which are incorporated by reference in this NOTE. 
 The BANK shall record the date and amount of each LOAN made, the
APPLICABLE INTEREST RATE, the amount of principal and interest due and payable from time to time hereunder, each payment thereof, and the resulting unpaid principal balance hereof, on the schedule attached to this NOTE or any similar form designated
by the BANK in its sole and absolute discretion from time to time, and any such recordation shall be prima facie evidence of the accuracy of the information so recorded; provided that the BANK’s failure so to record shall not limit or otherwise
affect the obligations of the BORROWER hereunder and under the LINE AGREEMENT to repay the principal of and interest on the LOANS. 
 Both
principal and interest are payable in the currency of the LOAN and in immediately available funds to the BANK at 277 Park Avenue, New York, NY 10172, or at such other place as may be designated in writing by the holder of this NOTE. 

This promissory note is the NOTE referred to in, and is subject to and entitled to the benefits of, the UNCOMMITTED AND REVOLVING CREDIT LINE
AGREEMENT dated as of February 14, 2020 between the BORROWER and the BANK (as amended, modified, renewed or extended from time to time, the “LINE AGREEMENT”). Capitalized terms used herein shall have the respective meanings assigned
to them in the LINE AGREEMENT. 
 The LINE AGREEMENT provides, among other things, for acceleration (which in certain cases shall be
automatic) of the maturity hereof upon the occurrence of certain stated events, in each case without presentment, demand, protest or further notice of any kind, all of which are hereby expressly waived. 

THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK 

 

			
	THORNE HOLDING CORP.
		
	By:	 	/s/ Scott S Wheeler
		 	Scott S Wheeler
		 	Chief Financial Officer

 SCHEDULE TO 

UNCOMMITTED AND REVOLVING CREDIT NOTE 

BORROWER: THORNE HOLDING CORP. 
 LINE AMOUNT:
    US$20,000,000.00 
  

															
	 Date
	  	 Bank’s
Reference
Number
	  	 Amount

of Loan
	  	 Maturity
Date
	  	 Applicable
Interest
Rate
	  	 Amount
of
Principal
Paid
	  	 Unpaid
Balance
of Note
	  	 Notation
Made
By:

 EXHIBIT B 

[Form of] 
 CERTIFICATE OF
CHIEF FINANCIAL OFFICER 
 The undersigned chief financial officer of THORNE HOLDING CORP. (the “Borrower”) does hereby
certify to SUMITOMO MITSUI BANKING CORPORATION (the “Bank”) that: 
 1. This certificate (the
“Certificate”) is delivered in accordance with Section 5.01 of the UNCOMMITTED AND REVOLVING CREDIT LINE AGREEMENT dated as of February 14, 2020 between the Borrower and the Bank (as amended, modified, renewed or extended
from time to time, the “Line Agreement”). Capitalized terms used in this Certificate and not otherwise defined herein shall have the meanings ascribed to such terms in the Line Agreement. 

2. I have reviewed the annual financial report of the Borrower and its consolidated subsidiaries on a consolidated basis for the period ended
[            ] (the “Financial Report”), a complete copy of which is attached to this Certificate. 

3. Based on my knowledge, the Financial Report presents fairly in all material respects the financial condition and results of operations of
the Borrower and its consolidated subsidiaries on a consolidated basis in accordance with GAAP consistently applied as of the end of and for the period covered by the Financial Report. 

4. Based on my knowledge, for the period covered by the Financial Report, and through and including the date of this Certificate: 

No Default or Event of Default has occurred. 

[or] 
 (a) The following
Default(s) or Event(s) of Default has/have occurred: 
 (b) The following action(s) has/have been taken or is/are proposed to be taken with
respect thereto: 
 IN WITNESS WHEREOF, the undersigned has executed this Certificate as of this
                     day of         ,
                    . 
  

			
	By:	 	 
		 	Name:
		 	Title:EX-10.20

 Exhibit 10.20 

REIMBURSEMENT AGREEMENT 

by and between 
 SUMITOMO
MITSUI BANKING CORPORATION 
 and 

THORNE HOLDING CORP. 

Dated as of November 30, 2018 

 REIMBURSEMENT AGREEMENT, dated as of November 30, 2018 (the
“Agreement”) by and between THORNE HOLDING CORP., a corporation organized under the laws of Delaware (the “Company”), and SUMITOMO MITSUI BANKING CORPORATION (the “Bank”). 

RECITALS: 
 The Company
wishes the Bank to issue, from time to time, from and after the date hereof, one or more standby letters of credit for the account of the Company (each, a “Letter of Credit”) for the sole purpose of supporting the obligation of
Thorne Research, Inc., a subsidiary of the Company, to make a security deposit pursuant to Section 1.5 of that certain Lease Agreement dated September 29, 2016 between Thorne Research, Inc., as tenant, and GPT
Summerville Owner, LLC, as landlord, and the Bank is willing to issue such Letters of Credit, subject to the exercise of its discretion in each instance, all on the terms and subject to the conditions set forth in this Agreement. 

NOW, THEREFORE, in consideration of the mutual promises contained in this Agreement, the Company and the Bank agree as follows: 

ARTICLE 1 
 DEFINITIONS
AND CONSTRUCTION 
 Section 1.1 Definitions. As used in this Agreement, the following terms have the following definitions:

 “Beneficial Ownership Certification” means a certification regarding beneficial ownership as required by the Beneficial Ownership Regulation.

 “Beneficial Ownership Regulation” means 31 C.F.R. §1010.230, as amended, modified, or supplemented from time to time. 

“Commission Fee” has the meaning assigned in Section 2.5. 

“Default” means an Event of Default or any event or condition which, upon notice, lapse of time or both pursuant to Section 6.2, would, unless
cured or waived, become an Event of Default. 
 “Demand” means any sight draft, electronic or telegraphic or SWIFT transmission, or other written
demand drawn or made, or purported to be drawn or made, under or in connection with any Letter of Credit. 
 “Dollars” or “$” refers to
lawful money of the United States of America. 
 “Event of Default” has the meaning assigned in Section 6.2. 

“FCPA” means the Foreign Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder. 

 “GAAP” means generally accepted accounting principles in the United States set forth in the
opinions and pronouncements of the Accounting Principles Board and the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board, as in effect from time to time. 

“Governmental Authority” means the government of the United States of America or any other nation or any political subdivision thereof, whether
state or local, and any agency, authority, instrumentality, regulatory body, court, central bank or other entity exercising executive, legislative, judicial, taxing, regulatory or administrative powers or functions of or pertaining to government.

 “Insolvency Proceeding” means any proceeding commenced by or against any Person under any provision of the United States Bankruptcy Code, as
amended, or under any other bankruptcy or insolvency law, including assignments for the benefit of creditors, or proceedings seeking reorganization, arrangement, or other relief. 

“LC Application” has the meaning assigned in Section 2.2. 

“LC Disbursement” has the meaning assigned in Section 2.3. 

“Letter of Credit” has the meaning assigned in the Recitals to this Agreement. 

“Letter of Guarantee” means the Letter of Guarantee provided by the Parents in favor of the Bank in support of the Company’s obligations
hereunder, to be delivered to the Bank pursuant to Section 3.1(a)(iii). 
 “Material Adverse Effect” means a material adverse effect on or
change in (a) the business, results of operations, properties, assets, liabilities, condition (financial or otherwise) or prospects of the Company or the Company and its Subsidiaries, taken as a whole; (b) the legality, validity, binding
effect or enforceability of this Agreement, or the Letter of Guarantee; (c) the ability of the Company or any Parent to fully and timely perform its obligations under this Agreement or the Letter of Guarantee, as applicable, as determined from
the perspective of a reasonable person in the Bank’s position; or (d) the rights, remedies and benefits available to, or conferred upon, the Bank under this Agreement or the Letter of Guarantee. 

“Obligations” means all obligations, liabilities and indebtedness of every nature of the Company from time to time owing to the Bank under or in
connection with this Agreement or any Letter of Credit, in each case whether primary, secondary, direct, indirect, joint, several, joint and several, contingent (including the undrawn amount of each Letter of Credit), fixed or otherwise, including
the obligation to provide cash collateral pursuant to this Agreement and including interest accruing at the rate provided in this Agreement on or after the commencement of any Insolvency Proceeding, whether or not allowed or allowable. 

“Order” means any writ, judgment, injunction, decree or similar order of any Governmental Authority. 

“Parent” (or, collectively, the “Parents”) means Mitsui & Co., Ltd. and Kirin Holdings Company, Limited, each a corporation
organized under the laws of Japan. 

  
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 “Person” means any natural person, corporation, limited liability company, trust, joint venture,
association, company, partnership, Governmental Authority, or other entity. 
 “Prime Rate” means the rate of interest per annum established by
the Bank’s New York Branch from time to time as its prime rate or base rate; each change in the Prime Rate shall be effective from and including the date such change is established as being effective. 

“Sanctions” has the meaning assigned in Section 5.1(f). 

“Subsidiary” means, with respect to any Person (the “parent”) at any date, any corporation, limited liability company, partnership,
association, or other entity the accounts of which would be consolidated with those of the parent in the parent’s consolidated financial statements if such financial statements were prepared in accordance with GAAP as of such date, as well as
any other corporation, limited liability company, partnership, association or other entity (a) of which securities or other ownership interests representing more than 50% of the equity or more than 50% of the ordinary voting power or, in the
case of a partnership, more than 50% of the general partnership interests are, as of such date, owned, controlled or held, or (b) that is, as of such date, otherwise controlled, by the parent or one or more subsidiaries of the parent or by the
parent and one or more subsidiaries of the parent. Unless otherwise specified, all references herein to a “Subsidiary” or to “Subsidiaries” shall refer to a Subsidiary or Subsidiaries of the Company. 

“Taxes” means all present or future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding), assessments, fees or
other charges imposed by any Governmental Authority, including any interest, additions to tax or penalties applicable thereto. 
 “UCP” means the
Uniform Customs and Practice for Documentary Credits as most recently published by the International Chamber of Commerce. 

Section 1.2 Terms Generally. The definitions of terms herein shall apply equally to the singular and plural forms of the terms
defined. Whenever the context may require, any pronoun shall include the corresponding masculine, feminine and neuter forms. The words “include”, “includes” and “including” shall be deemed to be followed by the phrase
“without limitation”. Unless the context requires otherwise (a) any definition of or reference to any agreement, instrument or other document herein shall be construed as referring to such agreement, instrument or other document as
from time to time amended, supplemented or otherwise modified (subject to any restrictions on such amendments, supplements or modifications set forth herein), (b) any reference herein to any Person shall be construed to include such Person’s
successors and assigns, and (c) the words “herein”, “hereof and “hereunder”, and words of similar import, shall be construed to refer to this Agreement in its entirety and not to any particular provision hereof. 

Section 1.3 Accounting Terms; GAAP. Except as otherwise expressly provided herein, all terms of an accounting or financial nature
shall be construed in accordance with GAAP, as in effect from time to time. 

  
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 ARTICLE 2 

ISSUANCE OF LETTERS OF CREDIT; 

REIMBURSEMENT AND OTHER PAYMENTS 

Section 2.1 General. Subject to the terms and conditions set forth herein, the Company may from time to time request the Bank to
issue Letters of Credit for its own account in such form as is acceptable to the Bank in its reasonable determination. A Letter of Credit may state that it is issued for the account of any Subsidiary of the Company without prejudice to the agreement
herein between the Company and the Bank that the Company shall be the account party for all Letters of Credit and shall have the obligations with respect thereto provided by this Agreement. The Company and the Bank acknowledge and agree that in
no event shall the aggregate amount of the Letters of Credit issued under this Agreement exceed $ 4,900,000. 
 Section 2.2
Procedure for Issuing Letters of Credit. In order to request the issuance of a Letter of Credit, the Company shall deliver to the Bank (reasonably in advance of the requested date of issuance) an application requesting the issuance of a
Letter of Credit, substantially in the form attached hereto as Exhibit B, or in such other form as may be acceptable to the Bank (each, an “LC Application”), setting forth the following information with respect to the
requested Letter of Credit: (i) the issuance date; (ii) the amount; (iii) the expiry date; (iv) the name and address of the applicant (which may be the Company or a Subsidiary); (v) the name and address of the beneficiary;
(vi) the documents, if any, to be presented by the beneficiary in case of any Demand; (vii) the full text of any certificate to be presented by the beneficiary in case of any Demand; and (viii) such other matters as shall be necessary
to prepare the Letter of Credit. If the Bank agrees to issue the Letter of Credit, the Bank shall deliver such Letter of Credit to its addressee with a copy to the Company and, if applicable, the Subsidiary, unless otherwise specified in the LC
Application. The signing of this Agreement shall not be construed to impose upon the Bank an obligation to issue, amend or renew any Letter of Credit. 

Section 2.3 Reimbursement. If the Bank shall make any payment or disbursement pursuant to or in respect of a Demand (each, an
“LC Disbursement”), the Company shall pay to the Bank, on demand, in same day funds, an amount equal to such LC Disbursement, provided that (a) if such Demand is in a currency other than Dollars, the Company shall, at the
option of the Bank, (i) pay the equivalent of such amount in Dollars at the Bank’s then-applicable selling rate for such other currency for transfers to the place where, and in the currency in which, such Demand is payable, or
(ii) pay such amount in such other currency in the place, form and manner directed by the Bank; and (b) if a time draft is drawn under any Letter of Credit, the Company shall make such payment without demand sufficiently in advance of the
maturity of the draft to enable the Bank to make timely payment of the amount so drawn under such Letter of Credit. The Company’s obligations with respect to any Letter of Credit issued [at the Company’s request] for the account of a
Subsidiary shall remain in effect until satisfied or such Letter of Credit expires undrawn, irrespective of any change in control of the Subsidiary. 

Section 2.4 Interest on Overdue Amounts. If the Company fails to reimburse the Bank for any LC Disbursement or if the Company
fails to pay any other amount owing hereunder in full on the date due, then the unpaid amount thereof shall bear interest (computed on the basis of a year of 360 days and the actual number of days elapsed), for each day from and including the date
of such LC Disbursement or payment default, as applicable, to but excluding the date on which payment is actually made by the Company, at the Prime Rate plus 2.0%. 

  
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 Section 2.5 Commission Fee. The Company shall pay to the Bank a commission fee
(the “Commission Fee”) with respect to each Letter of Credit, which shall be payable at such times and computed on such amounts and at such rates as the Company and the Bank may agree in one or more separate fee agreements or, in
the absence of such an agreement, as the Bank may, in its discretion, reasonably determine. The Commission Fee shall be fully earned when due and nonrefundable when paid, and the Company shall have no right to any refund of Commission Fees
previously paid by the Company, including any refund claimed because a Letter of Credit is cancelled prior to its expiration date. 

Section 2.6 Payment Instructions. All payments by the Company to the Bank hereunder shall be made in immediately available funds,
free of any reduction and without set-off or counterclaim. Payments in Dollars shall be made at or prior to 2:00 p.m., New York time, by wire transfer to Sumitomo Mitsui Banking Corp., New York (SWIFT:
SMBCUS33), ABA Number: 0260-0967-4, Account Name: SMBC Loan Operations New York, Account Number: 423001, Reference: Thorne Holding Corp., Attn: BCDAD JDAD Loan Services, or to such other account or accounts as
the Bank may notify the Company pursuant to Section 7.2. The Company hereby authorizes the Bank to debit any account maintained by the Company with the Bank to effect any payment under this Agreement. 

Section 2.7 Additional Costs. If any change in any law or regulation or in the interpretation thereof by any Governmental
Authority charged with the administration thereof shall either (i) impose, modify or deem applicable any reserve, special deposit or similar requirement, including any capital adequacy costs, against letters of credit issued by the Bank or
(ii) impose on the Bank any other condition regarding any Letter of Credit, and the result of any event referred to in clause (i) or (ii) of this Section 2.7 shall be to increase the cost to the Bank of issuing or maintaining such
Letter of Credit in any amount deemed material by the Bank, which cost, in the Bank’s judgment, cannot reasonably be avoided by the Bank, then, upon written notice from the Bank, the Company shall promptly pay to the Bank an amount equal to
such cost, the Bank’s determination of which will be conclusive in the absence of manifest error. All amounts contemplated in this Section 2.7 that are not paid within 10 days following such notice will bear interest at the rate set forth
in Section 2.4. 
 Section 2.8 Net Payment. All amounts payable by the Company hereunder will be paid in full, free of all
Taxes now or hereafter levied, collected, withheld, assessed or otherwise imposed, except in the case of the taxes imposed on the overall net income of the Bank. If any Taxes are so levied or imposed, the Company agrees to pay the full amount of
such Taxes and such additional amounts as may be necessary so that every payment of all amounts due hereunder, after withholding or deduction or on account of any Taxes, will not be less than the amount provided for herein. The Company shall
promptly furnish to the Bank tax receipts or other evidence of the payment by the Company of any such Taxes that are due under applicable law and, if the Bank pays any such Taxes, the Bank shall furnish to the Company copies of tax receipts
evidencing such payment by the Bank. If the Company is prohibited by law from making one or more payments under this Agreement free of Taxes in accordance herewith, or if any taxing authority shall at any time assert that the Bank is required to pay
any such Taxes with respect to payments made by the Company under this Agreement, 

  
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then the Company shall pay such additional amount to the Bank as may be necessary in order that the actual amount received by Bank after all Taxes (and after payment of any additional Taxes due
as a consequence of the payment of such additional amount) shall equal the amount that would have been received by the Bank if such Taxes were not required. Whenever any such Taxes are required to be withheld or deducted from any amounts payable to
the Bank hereunder, the Company shall pay such Taxes to the appropriate taxing authority for the account of the Bank and, as promptly as possible thereafter, send to the Bank an official receipt showing payment thereof, together with such additional
documentary evidence as may be reasonably required from time to time by the Bank. If the Company fails to pay any such Taxes when due to the appropriate taxing authority or fails to remit any such official receipts or other required documentary
evidence, the Company agrees to indemnify the Bank for and to hold the Bank harmless from and against any incremental taxes, interest or penalties that may become payable by the Bank as a result of such failure. 

Section 2.9 Letters of Credit Issued for Subsidiaries. Notwithstanding that a Letter of Credit issued or outstanding pursuant
hereto is in support of an obligation of, or is for the account of, a Subsidiary (or any Person who was a Subsidiary at the time the Letter of Credit was issued), the Company shall be obligated, on behalf of such Subsidiary, to reimburse Bank
hereunder for any and all drawings under such Letter of Credit. The Company hereby acknowledges that the issuance of Letters of Credit for the account of its Subsidiaries inures to the benefit of the Company, and that the Company’s business
derives substantial benefits from the businesses of such Subsidiaries. 
 ARTICLE 3 

CONDITIONS PRECEDENT 

Section 3.1 Conditions Precedent to Issuance of Letters of Credit. It shall be a condition precedent to the issuance by the Bank
of any Letter of Credit that: 
 (a) The Bank shall have received all of the following, each of which shall be in form and substance
satisfactory to the Bank: 
 (i) a certificate of an officer of the Company, dated as of the date hereof, certifying the name
and true signatures of the officers of the Company authorized to sign this Agreement and any documents related hereto; 

(ii) evidence reasonably acceptable to the Bank that the Company’s execution, delivery and performance of this Agreement
have been duly authorized by all necessary corporate action; 
 (iii) at least five days prior to the issuance of the first
Letter of Credit, a Beneficial Ownership Certification in relation to the Company; 
 (iv) the Letter of Guarantee, together
with evidence reasonably acceptable to the Bank that the Parents’ execution, delivery and performance of the Letter of Guarantee have been duly authorized by all necessary corporate action; and 

(v) such other documents, instruments, approvals (and, if requested by the Bank, certified duplicates of executed copies
thereof) as the Bank may request, including any guarantee or expression of support or pledge of security the Bank may require from time to time. 

  
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 (b) The representations and warranties contained in Section 5.1 hereof shall be true
and correct on and as of the date of issuance of each Letter of Credit as though made on and as of such date. 
 (c) All fees due hereunder
or in connection herewith, including, but not limited to, the Commission Fee described in Section 2.5 hereof, shall have been irrevocably paid in full. 

ARTICLE 4 
 OBLIGATIONS
ABSOLUTE 
 Section 4.1 Obligations of the Company. The obligations of the Company under this Agreement shall be absolute,
unconditional and irrevocable, and shall be paid and performed strictly in accordance with the terms of this Agreement, under any and all circumstances whatsoever, and irrespective of 

(a) the existence of any claim, set-off, defense or other rights that the Company, any other party
guaranteeing or otherwise obligated with the Company, any Subsidiary or any other Person may at any time have against the beneficiary under any Letter of Credit, the Bank or any other Person, whether in connection with this Agreement or any other
related or unrelated agreement or transaction; 
 (b) any Demand or other document presented under a Letter of Credit proving to be forged,
fraudulent, invalid or insufficient in any respect or any statement therein being untrue or inaccurate in any respect; 
 (c) the insolvency
or bankruptcy of any Person; 
 (d) any lack of validity or enforceability of any Letter of Credit or this Agreement, or any term or
provision of any of the foregoing; 
 (e) any change in the time, manner, or place of payment of, or in any other term of, any obligation of
the Company, any Subsidiary, or any other Person in respect of this Agreement, any Letter of Credit, or any related document or instrument or any other amendment or waiver of or any consent to departure from any of the foregoing; 

(f) whether such Letter of Credit is issued in support of any obligations of any Subsidiary or any Subsidiary is an applicant for, or purports
in any way to have any liability for, such Letter of Credit; or 
 (g) any other act, or omission to act, or delay of any kind of the Bank
or any other Person or any other event or circumstance whatsoever, whether or not similar to any of the foregoing, that might, but for the provisions of this Section 4.1, constitute a legal or equitable discharge of the Company’s
obligations hereunder. 

  
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 Section 4.2 Actions by the Bank. The Company agrees that any action or omission
by the Bank or any of the Bank’s correspondents in connection with the Letters of Credit or presentation thereunder will be binding on the Company and will not result in any liability to the Bank or any of the Bank’s correspondents in the
absence of the gross negligence or willful misconduct of the Bank or the Bank’s correspondents, as the case may be. Without limiting the generality of the foregoing, the Bank and each of the Bank’s correspondents (i) may rely on any
oral or other communication believed in good faith by the Bank or such correspondent to have been authorized or given by or on behalf of the Company; (ii) may honor any presentation if the documents presented appear on their face substantially
to comply with the terms and conditions of the relevant Letter of Credit; (iii) will not be liable to the Company for any consequential, punitive or special damages, or for any damages resulting from any change in the value of any property
relating to the Letters of Credit; (iv) may honor any Demand (whether such Demand is presented before or after the expiration of the Letter of Credit under which it is presented and whether such Demand has been previously dishonored) pursuant
to a court order, to settle or compromise any claim that the Demand was wrongfully dishonored, or otherwise, and in such case the Bank shall be entitled to reimbursement from the Company of the amount, including any interest, the Bank so pays to the
same extent as if the Bank had initially honored such Demand; (v) may honor any Demand that is payable upon presentation of a statement advising negotiation or payment, upon receipt of such statement (even if such statement indicates that a
draft or other document is being separately delivered), and will not be liable for any failure of any such draft or other document to arrive, or to conform in any way with the relevant Letter of Credit; (vi) may pay any paying or negotiating
bank claiming that it rightfully honored under the laws or practices of the place where such bank is located; and (vii) may settle or adjust any claim or demand made on the Bank in any way related to an Order; and honor any Demand in connection
with a Letter of Credit that is the subject of such Order, notwithstanding that any Demand or other documents presented in connection with such Letter of Credit fail to conform in any way with such Letter of Credit. 

Section 4.3 Payment of Demand. The Bank shall examine all documents purporting to represent a demand for payment under a Letter of
Credit promptly following its receipt of such Demand, and shall notify the Company of such Demand and whether the Bank has made or will make an LC Disbursement thereunder as promptly as possible; provided that any failure to give or delay in giving
such notice will not relieve the Company of its obligation to reimburse the Bank with respect to any such LC Disbursement. 
 ARTICLE 5

 REPRESENTATIONS AND WARRANTIES 

Section 5.1 Representations and Warranties of the Company. The Company represents and warrants as follows: 

(a) Each Parent is the direct owner of 38.7% of the issued and outstanding voting stock of the Company. 

(b) The Company (i) is an entity duly organized, validly existing and in good standing (where applicable) under the laws of the
jurisdiction of its organization, (ii) has all requisite power and authority, and all requisite licenses and permits from all Governmental Authorities having jurisdiction over the Company, to own its property and assets and to carry on its
business as now 

  
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conducted and as proposed to be conducted, (iii) is qualified to do business, and is in good standing (where applicable), in every jurisdiction where such qualification is required and
(iv) has the corporate power and authority to execute, deliver and perform its obligations under this Agreement and each other agreement or instrument contemplated hereby to which it is or will be a party. 

(c) This Agreement and the transactions contemplated hereby (i) have been duly authorized by all requisite corporate and, if required,
shareholder action and (ii) will not (A) violate (1) any material provision of law, statute, rule or regulation, or of the certificate or articles of incorporation or other constitutive documents or
by-laws of the Company, (2) any Order or (3) any provision of any indenture or any other material agreement or instrument to which the Company is a party or by which the Company or any of its
property is or may be bound, or (B) be in conflict with, result in a breach of or constitute (alone or with notice, lapse of time, or both) a default under, or give rise to any right to accelerate or to require the prepayment, repurchase or
redemption of any obligation under any such indenture, agreement or other instrument. 
 (d) This Agreement and the Letter of Guarantee
constitutes the legal, valid and binding obligation, contract and agreement of the Company or the Parents, as applicable, enforceable against such entity in accordance with its terms, except as enforcement may be limited by (i) bankruptcy,
insolvency, reorganization, moratorium or similar laws or equitable principles relating to or limiting creditors’ rights generally and (ii) general principles of equity (regardless of whether such enforceability is considered in a
proceeding in equity or at law). 
 (e) None of the Company or any of its Subsidiaries nor, to the knowledge of the Company, any director,
officer, agent, employee or other person acting on behalf of the Company or any of its Subsidiaries has taken any action, directly or indirectly, that would result in a violation by such persons of the FCPA or any other applicable anti-corruption
law; and the Company has instituted and maintains policies and procedures designed to ensure continued compliance therewith. 
 (f) None of
the Company, any of its Subsidiaries or any director, officer, employee, agent, or affiliate of the Company or any of its Subsidiaries is a Person that is, or is owned or controlled by, any Person that is: (i) the subject or target of any
sanctions administered or enforced by the U.S. Department of the Treasury’s Office of Foreign Assets Control (“OFAC”), the U.S. Department of State, or other relevant sanctions authority (collectively,
“Sanctions”), or (ii) located, organized or resident in a country or territory that is, or whose government is, the subject of Sanctions. 

ARTICLE 6 
 COVENANTS OF
THE COMPANY; EVENTS OF DEFAULT; REMEDIES 
 Section 6.1 Covenants of the Company. The Company covenants and agrees with the
Bank that, until all Letters of Credit have been canceled or have expired and all amounts drawn thereunder have been reimbursed in full and all interest, fees and other expenses or amounts payable hereunder, if any, shall have been paid in full, and
unless the Bank shall otherwise consent in writing: 
 (a) The Company shall (i) do or cause to be done all things necessary to
preserve, renew and keep in full force and effect its legal existence, (ii) do or cause to be done all things necessary to obtain, preserve, renew, extend and keep in full force and effect the rights, licenses,

  
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permits, franchises, authorizations, patents, copyrights, trademarks and trade names material to the conduct of its business and (iii) comply in all material respects with all applicable
laws, rules, regulations (including any zoning, building, environmental law, ordinance, code or approval) and Orders, whether now in effect or hereafter enacted or issued. 

(b) The Company shall deliver to the Bank such information respecting the business, properties, condition or operation, financial or
otherwise, of the Company as the Bank may from time to time reasonably request, including: 
 (i) as soon as available and in
any event within 120 days after the end of each fiscal year of the Company, its audited annual financial statements, which shall include at least its balance sheet and related statements of operations, stockholders’ equity and cash flow as of
the end of and for such year, setting forth in each case in comparative form the figures for the previous fiscal year, all reported on by independent public accountants of recognized national standing to the effect that such financial statements
present fairly in all material respects the financial condition and results of operations of the Company in accordance with GAAP consistently applied; 

(ii) if available, as soon as available and in any event within 90 days after the end of the first semiannual reporting period
of each fiscal year of the Company, its semiannual financial statements, which shall include at least its balance sheet and related statements of operations, stockholders’ equity and cash flow as of the end of and for such period, setting forth
in each case in comparative form the figures for the corresponding period of the previous fiscal year, presenting fairly in all material respects the financial condition and results of operations of the Company in accordance with GAAP consistently
applied (except as differences from GAAP shall have been disclosed to, and approved by, the Bank), subject to normal year-end adjustments and the absence of footnotes; and 

(iii) concurrently with any delivery of financial statements under clause (i) above, a certificate of a responsible
financial officer of the Company, in the form of Exhibit A attached hereto, certifying to such officer’s knowledge whether a Default or Event of Default has occurred and, if a Default or Event of Default has occurred, specifying the
details thereof and any action taken or proposed to be taken with respect thereto. 
 (c) The Company shall pay its obligations, including
Taxes, that, if not paid, could result in a Material Adverse Effect before the same shall become delinquent or in default, except where (i) the validity or amount thereof is being contested in good faith by appropriate proceedings,
(ii) the Company has set aside on its books adequate reserves with respect thereto in accordance with GAAP and (iii) the failure to make payment pending such contest could not reasonably be expected to result in a Material Adverse Effect.

  
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 (d) The Company shall promptly notify the Bank of: 

(i) any action, suit or proceeding against the Company before any Governmental Authority which, if adversely determined, would
materially affect the financial condition or operations of the Company or the ability of the Company to carry on its business or to perform its obligations under this Agreement; 

(ii) any Default, together with written notice specifying the nature and period of existence thereof and the action which
Company is taking or proposes to take with respect thereto; and 
 (iii) any other matter which has had or could reasonably
be expected to have a Material Adverse Effect. 
 (e) The Company shall maintain adequate books, accounts and records, all in accordance
with GAAP, and permit employees or agents of Bank, at any reasonable time and as often as may reasonably be desired, to inspect its properties and to examine or audit its books, accounts and records and make copies thereof and to discuss the
business, operations, properties and financial and other conditions of Company with officers of Company. 
 (f) The Company shall perform
any and all acts and execute any and all additional documents as may be reasonably requested from time to time by the Bank to give effect to the purposes of this Agreement. 

(g) The Company will not merge into or consolidate with any other Person, or permit any other Person to merge into or consolidate with it, or
sell, transfer, lease or otherwise dispose of (in one transaction or in a series of transactions) all or substantially all of its assets (in each case, whether now owned or hereafter acquired), or liquidate or dissolve. 

(h) No part of the proceeds of any Letter of Credit will be used, directly or indirectly, in furtherance of an offer, payment, promise to pay,
or authorization of the payment or giving of money, or anything else of value, to any Person in violation of the FCPA or any other applicable anti-corruption law. The Company shall maintain in effect policies and procedures designed to promote
compliance by the Company, its Subsidiaries, and their respective directors, officers, employees, and agents with the FCPA and any other applicable anti-corruption laws. 

(i) The Company shall not, directly or indirectly, use the proceeds of the Letters of Credit, or lend, contribute or otherwise
make available such proceeds to any subsidiary, joint venture partner or other Person, (i) to fund any activities or business of or with any Person, or in any country or territory, that, at the time of such funding, is, or whose government is,
the subject of Sanctions, or (ii) in any other manner that would result in a violation of Sanctions by any Person (including any Subsidiary or beneficiary). 

Section 6.2 Events of Default. Each of the following will constitute an event of default hereunder (an “Event of
Default”): 
 (a) Any representation or warranty made or deemed made herein or in connection with any Letter of Credit, or any
representation, warranty, statement or information made, deemed made or furnished in connection with or pursuant hereto, proves to have been false or misleading in any material respect when so made, deemed made or furnished. 

  
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 (b) The Company fails to reimburse the Bank for any LC Disbursement when and as the same
becomes due and payable, whether at the due date thereof, by acceleration or otherwise. 
 (c) The Company fails to make any payment of
interest on any LC Disbursement or of any fee or any other amount (other than an amount referred to in subsection (b) above) due hereunder or in connection herewith, when and as the same becomes due and payable, and such default continues
unremedied for a period of five (5) days. 
 (d) The Company fails to duly observe or perform any covenant, condition or agreement
contained in Section 6.1(a)(i), Section 6.1(d)(ii), Section 6.1(g), Section 6.1(h) or Section 6.1(i). 
 (e) The
Company fails to duly observe or perform any covenant, condition or agreement contained in this Agreement (other than those specified in (b), (c) or (d) above) and such failure continues unremedied for a period of thirty (30) days after
notice thereof from the Bank to the Company. 
 (f) (i) The Company fails to pay any principal or interest, regardless of amount, due in
respect of any indebtedness other than the Obligations hereunder (“Other Indebtedness”) when and as the same becomes due and payable or (ii) the Company fails to observe or perform any other term, covenant, condition or
agreement contained in any agreement or instrument evidencing or governing any such Other Indebtedness, or any other event or condition occurs, if the effect of any failure or other event or condition referred to in this clause (ii) is to
cause, or to permit the holder or holders of such Other Indebtedness or a trustee on its or their behalf to cause, such Other Indebtedness to become due or to be required to be repurchased, redeemed or defeased prior to its stated maturity. 

(g) The Company (i) voluntarily commences any proceeding or file any petition seeking liquidation, reorganization or other relief under
any Federal, state or foreign bankruptcy, insolvency, receivership or similar law now or hereafter in effect; (ii) consents to the institution of, or fails to contest in a timely and appropriate manner, any proceeding or petition described in
clause (h) of this Section 6.2; (iii) applies for or consents to the appointment of a receiver, trustee, custodian, sequestrator, conservator or similar official for the Company or for a substantial part of its assets; (iv) files an
answer admitting the material allegations of a petition filed against it in any such proceeding; (v) makes a general assignment for the benefit of creditors; or (vi) takes any corporate or other action for the purpose of effecting any of
the foregoing. 
 (h) An involuntary proceeding is commenced or an involuntary petition is filed seeking (i) liquidation,
reorganization or other relief in respect of the Company or its debts, or of a substantial part of its assets, under any Federal, state or foreign bankruptcy, insolvency, receivership or similar law now or hereafter in effect; or (ii) the
appointment of a receiver, trustee, custodian, sequestrator, conservator or similar official for the Company or for a substantial part of its assets, and, in any such case, such proceeding or petition continues undismissed for 60 days or an order or
decree approving or ordering any of the foregoing is entered. 

  
 -12- 

 (i) The Company becomes unable, admits in writing its inability, or fails generally to pay
its debts as they become due. 
 (j) One or more judgments for the payment of money in an aggregate amount in excess of $1,000,000 is
rendered against the Company and the same remains undischarged for a period of thirty (30) consecutive days during which execution is not effectively stayed, or any action is legally taken by a judgment creditor to levy upon assets or
properties of the Company to enforce any such judgment. 
 (k) Any guarantee, letter of awareness or other document executed or issued in
support of the obligations of the Company to the Bank, including the Letter of Guarantee, ceases to be, or is asserted by any issuer thereof not to be, a valid and enforceable guarantee of the obligations hereunder, or the issuer fails to observe or
perform any covenant, undertaking, or other obligation thereunder, or any security interest purported to be created by this Agreement or any related security document ceases to be, or is asserted by the grantor thereof not to be, a valid, perfected,
first priority security interest in the assets or properties covered thereby. 
 (l) Any event occurs which could reasonably be expected to
have a Material Adverse Effect. 
 Section 6.3 Remedies. (a) Upon the occurrence of any Event of Default (other than an
event with respect to the Company described in clauses (g), (h), or (i) of Section 6.2), the Bank may, by notice to the Company, (i) declare all Obligations to be immediately due and payable, whereupon the same shall forthwith become
due and payable by the Company, without presentment, demand, protest or other notice of any kind, all of which are hereby waived by the Company and (ii) demand that the Company pay, whereupon the Company shall be obligated to pay forthwith, an
amount in immediately available funds (which funds shall be held by the Bank as collateral to secure the Obligations hereunder for the duration of such Event of Default pursuant to arrangements satisfactory to the Bank) equal to the sum of the
aggregate of the amounts undrawn and available to be drawn under all Letters of Credit outstanding on such date; and, in case of any event with respect to the Company described in clauses (g), (h), or (i) of Section 6.2, all Obligations
shall become immediately and automatically due and payable, and the obligation of the Company to pay cash collateral as aforesaid shall automatically become effective, in each case without presentment, demand, protest or other notice of any kind,
all of which are hereby waived by the Company. 
 (b) If any Event of Default shall have occurred and be continuing, the Bank may, without
notice to the Company except as required by law and at any time or from time to time, charge, set-off, and otherwise apply any deposits of the Company held by the Bank or any affiliate of the Bank (including
unmatured time deposits and certificates of deposit) against the Obligations or any part thereof. 
 (c) Until the application by the Bank
of any portion of the cash collateral hereunder to the discharge of the Obligations, the Company shall be entitled to receive such investment and interest income as may accrue on such portion of the cash collateral not so applied pursuant to
arrangements satisfactory to the Bank. In furtherance thereof, the Bank agrees that if and as instructed by the Company, the Bank shall, subject to arrangements satisfactory to it, invest such portion of the

  
 -13- 

 
cash collateral as the Company shall direct in the following: (i) certificates of deposit of the Bank or any commercial bank having capital and surplus of at least $100,000,000; (ii) direct
obligations of, or obligations of which principal and interest is fully secured by, the U.S. Government or any agency or division thereof, or (iii) commercial paper rated A-1 or P-1. 
 ARTICLE 7 

MISCELLANEOUS 

Section 7.1 Amendments; Etc. No amendment or waiver of any provision of this Agreement nor consent to any departure by the Bank or
the Company therefrom shall in any event be effective unless the same shall be in writing and signed by the Bank and the Company, and then such waiver or consent shall be effective only in the specific instance and for the specific purpose for which
given. 
 Section 7.2 Notices. Except in the case of notices and other communications expressly permitted to be given by
telephone, all notices and other communications provided for herein will be in writing and will be delivered by hand or overnight courier service, mailed by certified or registered mail, or sent by fax or email as follows: 

If to the Company:   Thorne Holding Corp. 

620 Omni Industrial Boulevard 

Summerville, SC 29486 

Attention: Mr. Scott Wheeler 

Telephone: (843) 501-0286 

email: swheeler@Thorne.com 
 If
to the Bank:           Sumitomo Mitsui Banking Corporation 
 277 Park Avenue, 6th Floor

 New York, NY 10172 

Attention: JDAD 
 Telephone:
(212) 224-4000 
 Fax: (212) 593.9514 

Notices sent by hand or overnight courier service, or mailed by certified or registered mail, will be deemed to have been given when received; notices sent by
fax or email will be deemed to have been given when sent (except that, if not given during normal business hours for the recipient, will be deemed to have been given at the opening of business on the next business day for the recipient). The Company
and the Bank may each change its address for purposes hereof by notice to the other given in accordance with this Section 7.2. 

Section 7.3 No Waiver; Remedies Cumulative. No failure on the part of the Bank or the Company to exercise, and no delay in
exercising, any right hereunder shall operate as a waiver thereof, nor shall any single or partial exercise thereof or the exercise of any other rights. The remedies herein provided are cumulative and not exclusive of any remedies provided by law.

  
 -14- 

 Section 7.4 Indemnification. (a) The Company shall indemnify and hold
harmless the Bank from and against any and all claims, damages, losses, liabilities, or reasonable costs or expenses whatsoever which the Bank may incur (or which may be claimed against the Bank by any Person whatsoever) by reason of or in
connection with the transfer of, or payment of or failure to pay under, any Letter of Credit (including, not in limitation but in furtherance of the foregoing, any of the circumstances set forth in Section 4.1 hereof) or by reason of or in
connection with any litigation or other proceeding in any way restraining, enjoining, or affecting the issuance of any Letter of Credit or the entering into of this Agreement or the performance of any obligations hereunder; provided that the
Company shall not be required to indemnify the Bank for any claims, damages, losses, liabilities, costs or expenses to the extent caused directly by the gross negligence or willful misconduct of the Bank. The obligations of the Company under this
Section 7.4 shall survive the termination or payment of any Letter of Credit. 
 (b) Reliance on Advice of Counsel. The Bank may
consult with and employ outside legal counsel to advise it concerning its obligations with respect to any Letter of Credit, and shall be entitled to act upon, and shall be fully protected in any action taken in good faith reliance upon, any advice
given by such counsel. 
 Section 7.5 Continuing Obligation. This Agreement is a continuing obligation and shall be binding upon
and inure to the benefit of and be enforceable by the Bank and the Company and their respective successors, transferees and assigns; provided that the Company may not assign all or any part of its rights or obligations under this Agreement
without the prior written consent of the Bank. 
 Section 7.6 Liability of the Bank. As between the Company and the Bank, the
Company assumes all risks of the acts and omissions of, or misuse of the Letters of Credit by, the respective beneficiaries of the Letters of Credit; provided however that the Company may have a claim against the Bank and the Bank may be
liable to the Company, to the extent, but only to the extent, of any direct (as opposed to consequential or exemplary) damages suffered by the Company which the Company proves were caused by the willful misconduct or gross negligence in determining
whether documents presented under a Letter of Credit comply with the terms of such Letter of Credit. In furtherance and not in limitation of the foregoing, the Bank shall not be responsible for: (i) the form, validity, sufficiency, accuracy,
genuineness or legal effect of any document submitted by any party in connection with the application for an issuance of a Letter of Credit, even if it should in fact prove to be in any or all respects invalid, insufficient, inaccurate, fraudulent
or forged, (ii) the validity or sufficiency of any instrument transferring or assigning or purporting to transfer or assign a Letter of Credit or the rights or benefits thereunder or proceeds thereof, in whole or in part, which may prove to be
invalid or ineffective for any reason, (iii) the failure of the beneficiary of a Letter of Credit to comply fully with conditions required to be satisfied by any Person other than the Bank in order to draw upon such Letter of Credit,
(iv) errors, omissions, interruptions or delays in transmission or delivery of any messages, by mail, cable, or otherwise, (v) errors in the interpretation of technical terms, (vi) the misapplication by the beneficiary of a Letter of
Credit of the proceeds of any drawing under such Letter of Credit or (vii) any consequences arising from causes beyond control of the Bank. 

  
 -15- 

 Section 7.7 Costs, Expenses and Taxes. Promptly upon the request of the Bank,
the Company shall pay or reimburse the Bank for all reasonable out-of-pocket costs and expenses incurred by the Bank in connection with the execution, delivery, filing,
recording, enforcement and administration of this Agreement or any related document or instrument, including correspondent’s charges, attorney’s fees and other legal costs and expenses, and any and all stamp and other taxes and fees
payable or determined to be payable in connection with any of the foregoing, and the Company shall save the Bank harmless from and against any and all liabilities with respect to or resulting from any delay in paying or omission to pay such taxes
and fees. 
 Section 7.8 Governing Law. Except to the extent that any Letter of Credit provides otherwise, the UCP shall apply
to each Letter of Credit. This Agreement shall be governed by and construed in accordance with the laws of the State of New York, except to the extent inconsistent with the UCP. 

Section 7.9 Headings. Article and Section headings in this Agreement are included herein for convenience of reference only and
shall not constitute a part of this Agreement for any other purpose. 
 Section 7.10 Severability. If any one or more of the
covenants, agreements, provisions or terms of this Agreement shall be for any reason whatsoever held invalid, then such covenants, agreements, provisions or terms shall be deemed severable from the remaining covenants, agreements, provisions or
terms of this Agreement and shall in no way offset the validity or enforceability of the other provisions of this Agreement. 

Section 7.11 Counterparts. This Agreement may be signed in one or more counterparts, each of which shall be an original and all of
which together shall constitute one agreement. 
 Section 7.12 Entire Agreement. This Agreement (including the recitals set
forth hereinabove), the Letters of Credit, any fee letters relating thereto and the UCP integrate all the terms and conditions mentioned herein or incidental hereto, and supersede all oral negotiations and prior writings with respect to the subject
matter hereof. 
 Section 7.13 Waiver of Jury Trial; Submission to Jurisdiction. EACH OF THE BANK AND THE COMPANY HEREBY
IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY. The Company and the Bank hereby
submit to the nonexclusive jurisdiction of the United States District Court for the Southern District of New York and any New York state court sitting in New York City for the purposes of all legal proceedings arising out of or relating to this
Agreement. 
 Section 7.14 PATRIOT Act. The Bank hereby notifies the Company that pursuant to the requirements of the USA
PATRIOT Act (Title III of Pub. L. 107-56) (the “Act”), it is required to obtain, verify and record information that identifies each customer (including applicants for letters of credit,
guarantors and grantors (“Customers”), which information includes the name and address of each Customer and other information that will allow such Bank to identify such Customer in accordance with the Act. 

  
 -16- 

 Section 7.15 Confidentiality. The Bank agrees to keep confidential any
information provided to it by or on behalf of the Company pursuant to or in connection with this Agreement, other than information which has been publicly disclosed or is otherwise publicly available other than in breach of this Section 7.15;
provided that nothing herein shall prevent the Bank from disclosing any such information (i) to any potential assignee of or participant in this Agreement or any Letter of Credit or any actual or prospective counterparty (or its
advisors) to any swap or derivative transaction relating to the Company and its obligations which agrees in writing to comply with the provisions of this section; (ii) to its affiliates and the employees, officers, partners, directors, agents
attorneys, accountants and other professional advisors of it and its affiliates, provided that such recipients are obligated to keep the information confidential; (iii) upon the request or demand of any Governmental Authority having
jurisdiction over the Bank, including during the course of periodic examinations and reviews of the Bank; (iv) in connection with the exercise of any remedy hereunder; (v) in connection with any litigation to which the Bank may be a party;
and (vi) if, prior to such information having been so provided or obtained, such information was already in the Bank’s possession on a non-confidential basis without, to the best of the Bank’s
knowledge, a duty of confidentiality to the Company being violated. 
 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed and delivered by their respective officers thereunto duly authorized as of the date first above written. 
  

			
	THORNE HOLDING CORP.
		
	By:	 	/s/ Scott Wheeler
	Name:	 	Scott Wheeler
	Title:	 	CFO

  

			
	SUMITOMO MITSUI BANKING CORPORATION
		
	By:	 	/s/ Satoshi Takahara
	Name:	 	Satoshi Takahara
	Title:	 	Executive Director

  
 -17- 

 EXHIBIT A 

[Form of] 
 CERTIFICATE OF
CHIEF FINANCIAL OFFICER 
 The undersigned chief financial officer of THORNE HOLDING CORP. (the “Company”) does hereby
certify to SUMITOMO MITSUI BANKING CORPORATION (the “Bank”) that: 
 1. This certificate (the
“Certificate”) is delivered in accordance with Section 6.1(b) of the Reimbursement Agreement dated as of November 30, 2018 (the “Reimbursement Agreement”) between the Company and the Bank. Capitalized
terms used in this Certificate and not otherwise defined herein shall have the meanings ascribed to such terms in the Reimbursement Agreement. 

2. I have reviewed the annual financial report of the Company for the period ended [ ] (the “Financial Report”), a
complete copy of which is attached to this Certificate. 
 3. Based on my knowledge, the Financial Report presents fairly in all material
respects the financial condition and results of operations of the Company in accordance with GAAP consistently applied as of the end of and for the period covered by the Financial Report. 

4. Based on my knowledge, for the period covered by the Financial Report, and through and including the date of this Certificate: 

No Default or Event of Default has occurred. 

[or] 
 (a) The following
Default(s) or Event(s) of Default has/have occurred: 
 (b) The following action(s) has/have been taken or is/are proposed to be taken with
respect thereto: 
 IN WITNESS WHEREOF, the undersigned has executed this Certificate as of this 10th day of December, 2018 
  

			
	By:	 	/s/ Scott Wheeler
	Name:	 	Scott Wheeler
	Title:	 	CFO

 EXHIBIT B 

[Form of] 
 APPLICATION
FOR STANDBY LETTER OF CREDIT 
  

			
		  	L/C
No.:                                        
         
		  	(for Bank use only)

  
  

	To:	 SUMITOMO MITSUI BANKING CORPORATION 

277 Park Avenue, 6th Floor 
 New
York, NY 10172 
 Attention: JDAD 
 Date:
________ _______, 20___ 
 Please issue for our account an irrevocable Standby Letter of Credit as set forth below by: 

☐ SWIFT____         ☐ Courier ☐ Applicant to arrange pickup ☐ Other
(specify): 
  

			
	Applicant (full name and address):	  	
		
	Beneficiary (full name and address):	  	
		
	Delivery Instructions (if different from Beneficiary):	  	
		
	Amount and Currency (please use ISO Alphabetic Currency Codes):	  	
		
	Pricing:	  	
		
	Issuance Date:	  	___         , 20
		
	Expiry Date:	  	___         , 20
		
	Drawings to be accompanied by:	  	☐ Certificate (please attach full text)
☐ The following documents (please specify):
		
	Letter of Credit format attached:	  	 ☐ yes
 ☐ no

		
	Other information:	  	

 Confirmation of the Credit: 

☐ Not Requested        ☐ Requested
                ☐ Authorized if requested by Beneficiary 
 Each
credit shall be subject to: 
 ☐ International Standby Practice 1998, ICC Publication 590 (ISP98) 

☐ Uniform Customs and Practice for Documentary Credits, 2007 Revision, International Chamber of Commerce Publication No. 600 (UCP 600) 

☐ Other (please specify): 

  
 Page 2 of 2 

 The undersigned requests you to issue your irrevocable standby letter of credit (herein called the
“Credit”), substantially in accordance with these instructions (marked (x) where appropriate). The undersigned agrees to be bound in respect of the Credit by the terms and conditions of the Reimbursement Agreement dated
of November 30, 2018, as amended, supplemented or otherwise modified from time to time, made by the undersigned (and, if applicable, one or more other parities) to you (which agreement you may have received by electronic
transmission). The undersigned represents and warrants to you that (i) no Event of Default (as defined in such agreement) or other event that, with notice, lapse of time, or both, would constitute an Event of Default has occurred and is
continuing or would result from the issuance of the requested Credit and (ii) all representations and warranties contained in such agreement are true and correct in all material respects as of the date hereof and will be true and correct in all
material respects immediately after issuance of the requested Credit. 
  

			
	THORNE HOLDING CORP
		
	By:	 	/s/ Scott Wheeler
	Name:	 	Scott Wheeler
	Title:	 	CFO

 [on Thorne Research, Inc. letterhead] 

  
 Page 2 of 2

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