EX-10.50



 Exhibit 10.50 

Great Basin Scientific, Inc. 
 2441 South 3850 West 

Salt Lake City, Utah 84120 
 Gentlemen: 

The undersigned (the “Investor”) hereby confirms its agreement with Great Basin Scientific, Inc., a Delaware corporation (the
“Company”) as follows: 
 1. This Subscription Agreement, including the Terms and Conditions For Purchase of
Securities attached hereto as Annex I (collectively, (this “Agreement”) is made as of the date set forth below between the Company and the Investor. 

2. The Company has authorized the sale and issuance to certain investors of up to an aggregate of
                 Units (the “Units”) consisting of (i)                 
authorized but unissued shares of common stock, par value $0.0001 per share (the “Common Stock”), of the Company (the “Shares”) and (ii)
                 Series G Warrants (the “Warrants”) to purchase an aggregate of up to
                 authorized but unissued shares of Common Stock (the “ Warrant Shares”). Each Unit will consist of one Share and
                (    ) Warrants. The Units, the Shares and the Warrants are collectively referred to as the “Securities.” The
purchase price per Unit shall be $     (the “Unit Purchase Price”). The Units will not be separately issued or certificated and the Securities shall be immediately separable and transferable upon issuance. The
form of the Warrant is attached hereto as Exhibit A. 
 3. The offering and sale of the Securities (the
“Offering”) are being made pursuant to (1) an effective Registration Statement on Form S-1, File No. 333-211334 (including the additional registration statement filed with respect thereto pursuant to Rule 462(b) under the Securities
Act (as defined below) the “Registration Statement”) filed by the Company with the Securities and Exchange Commission (the “Commission”) (including the prospectus contained therein (the
“Prospectus”) and (2) if applicable, certain “free writing prospectuses” (as that term is defined in Rule 405 under the Securities Act of 1933, as amended (the “Securities Act”)), that have been or
will be filed with the Commission and delivered to the Investor on or prior to the date hereof (the “Issuer Free Writing Prospectus”), containing certain supplemental information regarding the Securities, the terms of the Offering
and the Company. 
 4. The Company and the Investor agree that the Investor will purchase from the Company and the Company will issue
and sell to the Investor the Securities set forth below for the aggregate Purchase Price set forth below. The Securities shall be purchased pursuant to the Terms and Conditions for Purchase of Securities attached hereto as Annex I
and incorporated herein by this reference as if fully set forth herein. The Investor acknowledges that the Offering is not being underwritten by the placement agent (the “Placement Agent”) named in the Prospectus and
that there is no minimum offering amount. 







 5. The manner of settlement of the Securities purchased by the Investor shall be
determined by such Investor as follows (check one): 
 a. The Shares shall be settled as follows: 

 

	[    ]	A. Delivery by crediting the account of the Investor’s prime broker (as specified by such Investor on Exhibit A annexed hereto) with the Depository Trust Company (“DTC”) through its
Deposit/Withdrawal At Custodian (“DWAC”) system, whereby Investor’s prime broker shall initiate a DWAC transaction on the Closing Date using its DTC participant identification number, and released by the Company’s transfer
agent (the “Transfer Agent”), at the Company’s direction. NO LATER THAN ONE (1) BUSINESS DAY AFTER THE EXECUTION OF THIS AGREEMENT BY THE INVESTOR AND THE COMPANY, THE INVESTOR SHALL: 


 

	 	(I)	DIRECT THE BROKER-DEALER AT WHICH THE ACCOUNT OR ACCOUNTS TO BE CREDITED WITH THE SHARES ARE MAINTAINED TO SET UP A DWAC INSTRUCTING THE TRANSFER AGENT TO CREDIT SUCH ACCOUNT OR ACCOUNTS WITH THE SHARES, AND


  

	 	(II)	REMIT BY WIRE TRANSFER THE AMOUNT OF FUNDS EQUAL TO THE AGGREGATE PURCHASE PRICE FOR THE SECURITIES BEING PURCHASED BY THE INVESTOR TO THE FOLLOWING ACCOUNT: 


To be separately provided to the Investor 

—OR— 
  

	[    ]	B. Delivery versus payment (“DVP”) through DTC (i.e., on the Closing Date, the Company shall issue such Shares registered in the Investor’s name and address as set forth below and released
by the Transfer Agent directly to the account(s) at Roth Capital Partners, LLC (“Roth”) identified by the Investor; upon receipt of such Shares, Roth shall promptly electronically deliver such Shares to the Investor, and
simultaneously therewith payment shall be made by Roth by wire transfer to the Company). NO LATER THAN ONE (1) BUSINESS DAY AFTER THE EXECUTION OF THIS AGREEMENT BY THE INVESTOR AND THE COMPANY, THE INVESTOR SHALL: 


 

	 	(III)	NOTIFY ROTH OF THE ACCOUNT OR ACCOUNTS AT ROTH TO BE CREDITED WITH THE SHARES BEING PURCHASED BY SUCH INVESTOR, AND 

  

	 	(IV)	CONFIRM THAT THE ACCOUNT OR ACCOUNTS AT ROTH TO BE CREDITED WITH THE SHARES BEING PURCHASED BY THE INVESTOR HAVE A MINIMUM BALANCE EQUAL TO THE AGGREGATE PURCHASE PRICE FOR THE SECURITIES BEING PURCHASED BY THE
INVESTOR. 

 IT IS THE INVESTOR’S RESPONSIBILITY TO (A) MAKE THE NECESSARY WIRE TRANSFER OR CONFIRM THE PROPER ACCOUNT BALANCE
IN A TIMELY MANNER AND (B) ARRANGE FOR SETTLEMENT BY WAY OF DWAC OR DVP IN A TIMELY MANNER. IF THE INVESTOR DOES NOT DELIVER THE AGGREGATE  







 
PURCHASE PRICE FOR THE SECURITIES OR DOES NOT MAKE PROPER ARRANGEMENTS FOR SETTLEMENT IN A TIMELY MANNER, THE SECURITIES MAY NOT BE DELIVERED AT CLOSING TO THE INVESTOR OR THE INVESTOR
MAY BE EXCLUDED FROM THE CLOSING ALTOGETHER. 
 6. The executed Warrants shall be delivered to the Investor by mail,
registered in such names and sent to such address as specified by the Investor below. 
 7. The Investor represents that, except as
set forth below, (a) it has had no position, office or other material relationship within the past three years with the Company or persons known to it to be affiliates of the Company, (b) it is not a member of the Financial Industry Regulatory
Authority, Inc. (“FINRA”) or an Associated Person (as such term is defined under the FINRA’s NASD Membership and Registration Rules Section 1011) as of the Closing, and (c) neither the Investor nor any group of Investors
(as identified in a public filing made with the Commission) of which the Investor is a part in connection with the Offering, acquired, or obtained the right to acquire, 20% or more of the Common Stock (or securities convertible into or exercisable
for Common Stock) or the voting power of the Company on a post-transaction basis. Exceptions: 
  

	
	  


 (If no exceptions, write “none.” If left blank, response will be deemed to be “none.”) 

8. The Investor represents that it has received (or otherwise had made available to it by the filing by the Company of an electronic
version thereof with the Commission) the Prospectus, dated May     , 2016, which is a part of the Company’s Registration Statement, the documents incorporated by reference therein and any free writing prospectus
(collectively, the “Disclosure Package”), prior to or in connection with the receipt of this Agreement. The Investor acknowledges that, prior to the delivery of this Agreement to the Company, the Investor will receive certain
additional information regarding the Offering, including pricing information (the “Offering Information”). Such information may be provided to the Investor by any means permitted under the Securities Act,
including a free writing prospectus and oral communications. 
 9. No offer by the Investor to buy Securities will be accepted and no
part of the Purchase Price will be delivered to the Company until the Investor has received the Offering Information and the Company has accepted such offer by countersigning a copy of this Agreement, and any such offer may be withdrawn or revoked,
without obligation or commitment of any kind, at any time prior to the Company (or Roth on behalf of the Company) sending (orally, in writing or by electronic mail) notice of its acceptance of such offer. An indication of interest will
involve no obligation or commitment of any kind until the Investor has been delivered the Offering Information and this Agreement is accepted and countersigned by or on behalf of the Company. 

10. The Company acknowledges that the only material, non-public information relating to the Company or its subsidiaries that the
Company, its employees or agents has provided to the Investor in connection with the Offering prior to the date hereof are the material pricing terms of the Offering. 







 Number of
Units:                     
 Purchase Price per
Unit: $         
 Aggregate Purchase Price: $         

Purchaser’s Pro-Rata Portion multiplied by 35% for sales under Section 17:         % 

Please confirm that the foregoing correctly sets forth the agreement between us by signing in the space provided below for that purpose. 

 

			
	Dated as of: May     , 2016
	
	  

	INVESTOR
		
	By:	 	  



 
			
	Print Name:	 	  



 
			
	Title:	 	  



 
			
	Address:	 	  

	  



  

			
	Agreed and Accepted
	this      day of May, 2016:
	
	GREAT BASIN SCIENTIFIC, INC.
		
	By:	 	  

		 	Title:








 ANNEX I 

TERMS AND CONDITIONS FOR PURCHASE OF SECURITIES 

1. Authorization and Sale of the Securities. Subject to the terms and conditions of this Agreement, the Company has
authorized the sale of the Securities. 
 2. Agreement to Sell and Purchase the Securities; Placement Agent. 

2.1 At the Closing (as defined in Section 3.1), the Company will sell to the Investor, and the Investor will purchase from the
Company, upon the terms and conditions set forth herein, the number of Securities set forth on the last page of the Agreement to which these Terms and Conditions for Purchase of Securities are attached as Annex I (the
“Signature Page”) for the aggregate purchase price therefor set forth on the Signature Page. 
 2.2 The
Company proposes to enter into substantially this same form of Subscription Agreement with certain other investors (or, alternatively, sell Securities pursuant to the Prospectus without any Subscription Agreement) (the “Other
Investors”) and expects to complete sales of Securities to them. The Investor and the Other Investors are hereinafter sometimes collectively referred to as the “Investors,” and this Agreement and the
Subscription Agreements executed by the Other Investors are hereinafter sometimes collectively referred to as the “Agreements.” 

2.3 Investor acknowledges that the Company has agreed to pay Roth Capital Partners, LLC (the “Placement Agent”)
a fee (the “Placement Fee”) and to reimburse the Placement Agent for certain expenses in respect of the sale of the Securities to the Investor. 

2.4 The Company has entered into a Placement Agent Agreement, dated the date hereof, (the “Placement Agreement” or
“Roth”), with the Placement Agent that contains representations, warranties, covenants and agreements of the Company that may be relied upon by the Investor, which shall be a third party beneficiary thereof. The Company
confirms that neither it nor any other Person acting on its behalf has provided the Investor or their agents or counsel with any information that constitutes or could reasonably be expected to constitute material, nonpublic information, except as
will be disclosed in the Prospectus and/or in the Company’s Form 8-K to be filed with the Commission in connection with the Offering. The Company understands and confirms that the Investor will rely
on the foregoing representations in effecting transactions in securities of the Company. 
 3. Closings and Delivery of the Securities
and Funds. 
 3.1 Closing. The completion of the purchase and sale of the Securities (the
“Closing”) shall occur at a place and time (the “Closing Date”) to be specified by the Company and the Placement Agent, and of which the Investors will be notified in advance by the Placement
Agent, in accordance with Rule 15c6-l promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). At the Closing, (a) if applicable, the Company shall cause the Company’s transfer
agent (“Transfer Agent”), to deliver to the Investor the number of Shares included in the Units set forth on the Signature Page registered in the name of the Investor or, if so indicated on the Investor Questionnaire attached
hereto as Exhibit A, in the name of a nominee designated by the Investor, (b) the Company shall cause to be delivered to the Investor, 







 
a Warrant for the number of Warrant Shares included in the Units set forth on the Signature Page, and (c) the aggregate purchase price for the Securities being purchased by the Investor will be
delivered by or on behalf of the Investor to the Company. 
 3.2 Conditions to the Obligations of the Parties. 

3.3 (a) Conditions to the Company’s Obligations. The Company’s obligation to issue and sell the
Securities to the Investor shall be subject to: (i) the receipt by the Company of the purchase price for the Securities being purchased hereunder as set forth on the Signature Page, (ii) the accuracy of the representations and warranties
made by the Investor and the fulfillment of those undertakings of the Investor to be fulfilled prior to the Closing Date, and (iii) the condition that NASDAQ determine that the Offering qualifies as a “public offering” pursuant to
NASDAQ Marketplace Rule 5635(d) and NASDAQ Interpretation IM-5635-3. 
 3.4 (b) Conditions to the
Investor’s Obligations. The Investor’s obligation to purchase the Securities will be subject to the accuracy of the representations and warranties made by the Company and the fulfillment of those undertakings of
the Company to be fulfilled prior to the Closing Date, including without limitation, those contained in the Placement Agreement, and to the condition that the Placement Agent shall not have: (a) terminated the Placement Agreement pursuant to
the terms thereof or (b) determined that the conditions to the closing in the Placement Agreement have not been satisfied. The Investor’s obligations are expressly not conditioned on the purchase by any or all of the Other Investors of the
Securities that they have agreed to purchase from the Company. The Investor understands and agrees that, in the event that the Placement Agent in its sole discretion determines that the conditions to closing in the Placement Agreement have not been
satisfied or if the Placement Agreement may be terminated for any other reason permitted by such Placement Agreement, then the Placement Agent may, but shall not be obligated to, terminate such Agreement, which shall have the effect of terminating
this Subscription Agreement pursuant to Section 14 below. In addition, the Investor’s obligation to purchase the Securities will be subject to the condition that NASDAQ determine that the Offering qualifies as a “public
offering” pursuant to NASDAQ Marketplace Rule 5635(d) and NASDAQ Interpretation IM-5635-3. 
 3.5 Delivery of Funds. 

a. Payment for the Securities shall be made as follows: 

(a) DWAC Delivery. If the Investor elects to settle the Shares purchased by such Investor through DTC’s
Deposit/Withdrawal at Custodian (“DWAC”) delivery system, no later than one (1) business day after the execution of this Agreement by the Investor and the Company, the Investor shall remit by wire transfer the amount of funds
equal to the aggregate purchase price for the Securities being purchased by the Investor to the following account designated by the Company: 

To be separately provided to the Investor 







 (b) Delivery Versus Payment through The Depository Trust Company. If
the Investor elects to settle the Shares purchased by such Investor by delivery versus payment through DTC, no later than one (1) business day after the execution of this Agreement by the Investor and the
Company, the Investor shall confirm that the account or accounts at the Placement Agent to be credited with the Shares being purchased by the Investor have a minimum balance equal to the aggregate purchase price for the
Securities being purchased by the Investor. 
 3.6 Delivery of Shares. 

(a) DWAC Delivery. If the Investor elects to settle the Shares purchased by such Investor, if applicable, through DTC’s DWAC
delivery system, no later than one (1) business day after the execution of this Agreement by the Investor and the Company, the Investor shall direct the broker-dealer at which the account or
accounts to be credited with the Shares being purchased by such Investor are maintained, which broker/dealer shall be a DTC participant, to set up a DWAC instructing the Transfer Agent to credit such account or accounts with the Shares. Such DWAC
instruction shall indicate the settlement date for the deposit of the Shares, which date shall be provided to the Investor by the Placement Agent. Upon the closing of the Offering, the Company shall direct the Transfer Agent to credit the
Investor’s account or accounts with the Shares pursuant to the information contained in the DWAC. 
 (b) Delivery Versus Payment
through The Depository Trust Company. If the Investor elects to settle the Shares purchased by such Investor, if applicable, by delivery versus payment through DTC, no later than one (1) business day
after the execution of this Agreement by the Investor and the Company, the Investor shall notify the Placement Agent of the account or accounts at the Placement Agent to be credited with the Shares being purchased by such
Investor. On the Closing Date, the Company shall deliver the Shares to the Investor through DTC directly to the account(s) at the Placement Agent identified by Investor. Upon receipt of such Shares, the Placement Agent shall promptly
electronically deliver such Shares to the Investor, and simultaneously therewith payment shall be made by the Placement Agent by wire transfer to the Company. 

4. Representations, Warranties and Covenants of the Investor. 

The Investor acknowledges, represents and warrants to, and agrees with, the Company and the Placement Agent that: 

4.1 The Investor (a) is knowledgeable, sophisticated and experienced in making, and is qualified to make decisions with
respect to, investments in securities presenting an investment decision like that involved in the purchase of the Securities, including investments in securities issued by the Company and investments in comparable companies, (b) has answered
all questions on the Signature Page and the Investor Questionnaire and the answers thereto are true and correct as of the date hereof and will be true and correct as of the Closing Date and (c) in connection with its decision to purchase
the Securities set forth on the Signature Page, has received and is relying only upon the Disclosure Package and the documents incorporated by reference therein and the Offering Information. 







 4.2 (a) No action has been or will be taken in any jurisdiction outside
the United States by the Company or the Placement Agent that would permit an offering of the Securities, or possession or distribution of offering materials in connection with the issue of the Securities in any jurisdiction outside the
United States where action for that purpose is required, (b) if the Investor is outside the United States, it will comply with all applicable laws and regulations in each foreign jurisdiction in which it purchases, offers, sells or
delivers Securities or has in its possession or distributes any offering material, in all cases at its own expense and (c) the Placement Agent is not authorized to make and has not made any representation, disclosure or use of any information in
connection with the issue, placement, purchase and sale of the Securities, except as set forth or incorporated by reference in the Registration Statement, Prospectus or any free writing prospectus. 

4.3 (a) The Investor has full right, power, authority and capacity to enter into this Agreement and to consummate the
transactions contemplated hereby and has taken all necessary action to authorize the execution, delivery and performance of this Agreement, and (b) this Agreement constitutes a valid and binding obligation of the Investor enforceable
against the Investor in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting creditors’ and contracting parties’ rights
generally and except as enforceability may be subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law) and except as to the enforceability of any rights to
indemnification or contribution that may be violative of the public policy underlying any law, rule or regulation (including any federal or state securities law, rule or regulation). 

4.4 The Investor understands that nothing in this Agreement, the Prospectus, the Disclosure Package, the Offering
Information or any other materials presented to the Investor in connection with the purchase and sale of the Units constitutes legal, tax or investment advice. The Investor has consulted such legal, tax and investment advisors and made such
investigation as it, in its sole discretion, has deemed necessary or appropriate in connection with its purchase of Units. The Investor also understands that there is no established public trading market for the Warrants, and that the Company does
not expect such a market to develop. In addition, the Company does not intend to apply for listing of the Warrants on any securities exchange. The Investor understands that without an active trading market, the liquidity of the Warrants will be
limited. 
 4.5 The Investor will maintain the confidentiality of all information acquired as a result of the
transactions contemplated hereby prior to the public disclosure of that information by the Company in accordance with Section 13 of this Annex. 

4.6 Since the time at which the Placement Agent first provided the material pricing terms of the Offering, the Investor
has not disclosed any material pricing information regarding the Offering to any third parties (other than its legal, accounting and other advisors) and has not engaged in any purchases or sales of the securities of the Company (including, without
limitation, any Short Sales (as defined herein) involving the Company’s securities). The Investor covenants that it will not engage in any purchases or sales of the securities of the Company (including Short Sales) prior to the time that the
transactions contemplated by this Agreement are publicly disclosed. The Investor agrees that it will not 







 
use any of the Securities acquired pursuant to this Agreement to cover any short position in the Common Stock if doing so would be in violation of applicable securities laws. For purposes hereof,
“Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Exchange Act, whether or not against the box, and all types of direct and indirect stock
pledges, forward sales contracts, options, puts, calls, short sales, swaps, “put equivalent positions” (as defined in Rule 16a-1(h) under the Exchange Act) and similar arrangements (including on a total return basis), and sales and
other transactions through non-U.S. broker dealers or foreign regulated brokers. 
 4.7 The Investor has been
afforded, (i) the opportunity to ask such questions as it has deemed necessary of, and to receive answers from, representatives of the Company concerning the terms and conditions of the Offering and the merits and risks of investing in the
Securities; (ii) access to information about the Company and its financial condition, results of operations, business, properties, management and prospects sufficient to enable it to evaluate its investment; and (iii) the opportunity to obtain such
additional information that the Company possesses or can acquire without unreasonable effort or expense that is necessary to make an informed investment decision with respect to the investment. The Investor acknowledges and agrees that neither
Roth nor any affiliate of Roth has provided such Investor with any information or advice with respect to the Securities nor is such information or advice necessary or desired. Neither Roth nor any of its affiliates has made or makes any
representation as to the Company or the quality of the Securities and Roth and any of its affiliate may have acquired non-public information with respect to the Company which such Investor agrees need not be provided to it. In connection with
the issuance of the Securities to such Investor, neither Roth nor any of its affiliates has acted as a financial advisor or fiduciary to such Investor. 

5. Survival of Representations, Warranties and Agreements; Third Party Beneficiary. Notwithstanding any investigation
made by any party to this Agreement or by the Placement Agent, all covenants, agreements, representations and warranties made by the Company and the Investor herein will survive the execution of this Agreement, the delivery to the Investor of
the Securities being purchased and the payment therefor. The Placement Agent shall be a third party beneficiary with respect to the representations, warranties and agreements of the Investor in Section 4 hereof. 

6. Notices. All notices, requests, consents and other communications hereunder will be in writing, will
be mailed (a) if within the domestic United States by first-class registered or certified airmail, or nationally recognized overnight express courier, postage prepaid, or by facsimile or (b) if delivered from outside the United States, by
International Federal Express or facsimile, and will be deemed given (i) if delivered by first-class registered or certified mail domestic, three business days after so mailed, (ii) if delivered by nationally recognized overnight carrier, one
business day after so mailed, (iii) if delivered by International Federal Express, two business days after so mailed and (iv) if delivered by facsimile, upon electronic confirmation of receipt and will be delivered and addressed as follows:

 (a) if to the Company, to: 

Great Basin Scientific, Inc. 

2441 South 3850 West
 Salt Lake
City, Utah 84120 
 Attention: Chief Financial Officer

Facsimile: (801) 990-1051 







 with a copy (which shall not constitute notice) to: 

Dorsey & Whitney LLP 
 1400
Wewatta Street, Suite 400 
 Denver, Colorado 80202 

Attention: Jason Brenkert 
 Fax:
(303) 629-3450 
 (b) if to the Investor, at its address on the Signature Page hereto, or at such other address or addresses as may have
been furnished to the Company in writing. 
 7. Changes. This Agreement may not be modified or amended except pursuant to
an instrument in writing signed by the Company and the Investor. 
 8. Headings. The headings of the various
sections of this Agreement have been inserted for convenience of reference only and will not be deemed to be part of this Agreement. 

9. Severability. In case any provision contained in this Agreement should be invalid, illegal or
unenforceable in any respect, the validity, legality and enforceability of the remaining provisions contained herein will not in any way be affected or impaired thereby. 

10. Governing Law. This Agreement will be governed by, and construed in accordance with, the
internal laws of the State of New York, without giving effect to the principles of conflicts of law that would require the application of the laws of any other jurisdiction. 

11. Counterparts. This Agreement may be executed in two or more counterparts, each of which will constitute an
original, but all of which, when taken together, will constitute but one instrument, and will become effective when one or more counterparts have been signed by each party hereto and delivered to the other parties. The Company and the Investor
acknowledge and agree that the Company shall deliver its counterpart to the Investor along with the Prospectus (or the filing by the Company of an electronic version thereof with the Commission). 

12. Confirmation of Sale. The Investor acknowledges and agrees that such Investor’s receipt of the
Company’s signed counterpart to this Agreement, together with the Prospectus (or the filing by the Company of an electronic version thereof with the Commission), shall constitute written confirmation of the Company’s sale of the
Securities to such Investor. 
 13. Press Release. The Company and the Investor agree that the Company shall (a)
prior to the opening of the financial markets in New York City on May     , 2016 issue a press release announcing the Offering and disclosing all material information, including, without limitation, the material terms regarding
the Offering, not previously disclosed, permitted under existing SEC rules applicable to press releases, and (b) as promptly as practicable on May     , 2016 file a current report on Form 8-K with the Securities and Exchange
Commission. 







 14. Termination. In the event that the Placement Agreement is
terminated by the Placement Agent pursuant to the terms thereof, this Agreement shall terminate without any further action on the part of the parties hereto. 

15. Representations and Warranties of the Company. The Company hereby represents and warrants to the Investor that: 

15.1 The Registration Statement and any prospectus included therein, including the Prospectus and any supplement
thereto, complies in all material respects with the requirements of the Exchange Act and the rules and regulations of the Securities and Exchange Commission (the “Commission”) promulgated thereunder and all other applicable laws and
regulations. At the time the Registration Statement and any amendments thereto becomes effective (or became effective, as applicable), at the date of this Agreement and at each deemed effective date thereof pursuant to Rule 430B(f)(2) of the
Securities Act, the Registration Statement and any amendments thereto complied and will comply in all material respects with the requirements of the Securities Act and did not and will not contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary to make the statements therein not misleading. The Prospectus and any amendments or supplements thereto, at the time the Prospectus or any amendment or supplement thereto was issued
and at the Closing Date, complied, and will comply, in all material respects with the requirements of the Securities Act and did not, and will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order
to make the statements therein, in light of the circumstances under which they were made, not misleading. 
 15.2 As
of their respective dates, all reports, schedules, forms, statements and other documents filed by the Company with the Commission pursuant to the reporting requirements of the Exchange Act during the two (2) years prior to the date hereof (all of
the foregoing filed prior to the date hereof and all exhibits included therein and financial statements, notes and schedules thereto and documents incorporated by reference therein being hereinafter referred to as the “SEC
Documents”) complied in all material respects with the requirements of the Exchange Act and the rules and regulations of the Commission promulgated thereunder applicable to the SEC Documents, and none of the SEC Documents, at the time they
were filed with the Commission, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which
they were made, not misleading. As of their respective dates, the financial statements of the Company included in the SEC Documents complied as to form in all material respects with applicable accounting requirements and the published rules and
regulations of the SEC with respect thereto as in effect as of the time of filing. The Company is not currently contemplating to amend or restate any of the financial statements (including without limitation, any notes or any letter of the
independent accountants of the Company with respect thereto) included in the SEC Documents (the “Financial Statements”), nor is the Company currently aware of facts or circumstances which would require the Company to amend or
restate any of the 







 
Financial Statements, in each case, in order for any of the Financials Statements to be in compliance with generally accepted accounting principles and the rules and regulations of the
Commission. The Company has not been informed by its independent accountants that they recommend that the Company amend or restate any of the Financial Statements or that there is any need for the Company to amend or restate any of the
Financial Statements. 
 16. Equal Treatment of Purchasers. No consideration (including any modification of any subscription
agreement executed pursuant to the Offering or any Warrants issued pursuant to the Offering (each a “Transaction Document”)) shall be offered or paid to any Person to amend or consent to a waiver or modification of any provision of any
Transaction Document unless the same consideration is also offered to the each investor party to the Offering pursuant to this Agreement or other Subscription Agreements, including the Investor. For clarification purposes, this provision constitutes
a separate right granted to the Investor by the Company and negotiated separately by the Investor, and is intended for the Company to treat the investors party to the Offering as a class and shall not in any way be construed as any of the investors
party to the Offering acting in concert or as a group with respect to the purchase, disposition or voting of Securities or otherwise. 

17. Leak-Out Restrictions. For a period of five (5) Trading Days commencing on the date of the public announcement of the pricing
of the Offering (the “Leak-Out Period”), the Investor agrees, on behalf of itself and each affiliate (as defined in Rule 405 under the Securities Act) of such Investor which (x) had knowledge of the transactions contemplated
hereby, (y) has or shares discretion relating to such Investor’s investments or trading or information concerning such Investor’s investments, including in respect of the Securities, or (z) is subject to such Investor’s
review or input concerning such affiliate’s investments or trading (collectively, “Trading Affiliates”), not to sell, dispose or otherwise transfer more than their pro-rata portion of 35% of the daily trading volume of the
Common Stock on any Trading Day during the Leak-Out Period; provided, however, that the provisions of this sentence shall not apply to any sale, disposal or other transfer at a price greater than 135% of the Unit Purchase Price
(appropriately adjusted for any stock split, reverse stock split, stock dividend or other reclassification or combination of the Common Stock occurring after the date hereof). The pro-rata portion of each Investor and its Trading Affiliates shall be
calculated as the quotient of (A) the number of shares of Common Stock purchased by the Investor and its Trading Affiliates in the Offering divided by (B) the aggregate number of shares of Common Stock sold by the Company in the Offering
that are subject to the leak-out restrictions set forth in this Section 17 and the Prospectus. As used herein, “Trading Day” means any day on which the Common Stock is traded on the NASDAQ Capital Market, or, if the NASDAQ
Capital Market is not the principal trading market for the Common Stock, then on the principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include any day
on which the Common Stock is scheduled to trade on such exchange or market for less than 4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or if such exchange or market
does not designate in advance the closing time of trading on such exchange or market, then during the hour ending at 4:00:00 p.m., New York time). The provisions of this Section 17 may be amended or waived only in a writing signed by
(i) the Company and (ii) investors which purchased 67% of the shares of Common Stock sold in the Offering and which are subject to the leak-out set forth in this Section 17 and the Prospectus (the “Required
Investors”); provided, however, that no such amendment or waiver shall be effective as to any other Investor until it has received written notice thereof from the Company, which notice may be given pursuant to a generally
disseminated press release, which shall be issued by the Company as soon as practicable, but in any event prior to the opening of trading on the next Trading Day. 







 18. Lock-Up. For a period of ninety (90) days from the date hereof, the Company shall not,
without the prior written consent of the Required Investors, directly or indirectly offer, sell, assign, transfer, pledge, contract to sell, or otherwise dispose of, any shares of Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock, other than Excluded Issuances as defined in the Warrants and any shares of Common Stock issuable pursuant to the Notes as defined in the Warrants. The provisions of this Section 18 may be amended or waived only in a
writing signed by investors which purchased 67% of the shares of Common Stock purchased in the Offering pursuant to this Agreement and other Subscription Agreements. 

****************** 







 EXHIBIT A 

GREAT BASIN SCIENTIFIC, INC. 

INVESTOR QUESTIONNAIRE 
 Pursuant to
Section 3 of Annex I to the Agreement, please provide us with the following information: 
  

			
		
	 1.      The exact name that your Securities are to be registered
in. You may use a nominee name if appropriate:
	  	  

		
	 2.      The relationship between the Investor and the registered
holder listed in response to item 1 above:
	  	  

		
	 3.      The mailing address of the registered holder listed in
response to item 1 above:
	  	  

		
	 4.      The Social Security Number or Tax Identification Number of
the registered holder listed in the response to item 1 above:
	  	  

		
	 5.      Name of DTC Participant (broker-dealer at which the account
or accounts to be credited with the Shares are maintained):
	  	  

		
	 6.      DTC Participant Number:
	  	  

		
	 7.      Name of Account at DTC Participant being credited with the
Shares:
	  	  

		
	 8.      Account Number at DTC Participant being credited with the
Shares:
	  	  









 EXHIBIT B 

FORM OF SERIES G WARRANT