Document:

LIMITED
WAIVER AND CONSENT

 

THIS
LIMITED WAIVER AND CONSENT (this “Waiver”) is dated as of December 20, 2018 among RHINO ENERGY LLC,
a Delaware limited liability company (“Rhino”), each subsidiary of Rhino listed as a “Borrower”
on the signature pages hereto (together with Rhino, each a “Borrower” and collectively, the “Borrowers”),
the lenders who constitute “Required Lenders” under the Financing Agreement and listed as a “Required Lender”
on the signature pages hereto (the “Required Lenders”) and CORTLAND CAPITAL MARKET SERVICES LLC, as
collateral agent for the lenders (in such capacity, the “Collateral Agent”) and CORTLAND CAPITAL MARKET
SERVICES LLC, as administrative agent for the lenders (in such capacity, together with its successors and assigns, the “Administrative
Agent”).

 

RECITALS

 

WHEREAS,
Borrowers, Rhino Resource Partners LP, (“Parent”), each subsidiary of the Parent listed as a “Guarantor”
on the signature pages attached thereto, the lenders from time to time party thereto (the “Lenders”), CB Agent
Services LLC (the “Origination Agent”), the Collateral Agent and the Administrative Agent entered into that
certain Financing Agreement dated as of December 27, 2017 (the “Financing Agreement”). Capitalized terms used
but not otherwise defined herein shall have the meanings assigned thereto in the Financing Agreement.

 

WHEREAS,
Borrowers released from mortgage certain real property, as set forth on Exhibit A attached hereto (the “Original
Releases”). The Original Releases constituted Eligible Real Property for which, in accordance with Section 2.05(c)(ii)
of the Financing Agreement, 100% of the Net Cash Proceeds (the “Release Proceeds”) were to paid to the Administrative
Agent for the benefit of the Lenders as a mandatory prepayment of the Loans. Borrowers have not made the required mandatory prepayments
and each release without such payments constitutes an Event of Default under Section 9.01(a) of the Financing Agreement (the “Release
Defaults”).

 

WHEREAS,
Borrowers have requested and/or made additional releases of Eligible Real Property, as set forth on Exhibit B attached
hereto, (the “Authorized Releases”) for which Required Lenders authorized Borrowers to make the mandatory prepayments
under Section 2.05(c)(ii) (the “Authorized Proceeds”) at a later date to be determined by the Required Lenders.

 

WHEREAS,
Borrowers have requested that the Required Lenders (i) waive the Release Defaults (the “Release Waiver”) and
(ii) consent to future releases of Eligible Real Property (the “Consent Releases”) with the mandatory prepayments
under Section 2.05(c)(ii) of the Financing Agreement (the “Consent Proceeds; together with the Release Proceeds and
the Authorized Proceeds, the “Eligible Property Proceeds” as set forth on Schedule I attached hereto)
being delayed until such later time as determined by the Required Lenders (the “Consent”), as more particularly
set forth below, and the Required Lenders are willing to effect the Release Waiver and the Consent as provided in, and on the
terms and conditions contained in, this Waiver.

 

    	 

    	 

    

 

AGREEMENTS

 

NOW,
THEREFORE, for good and valuable consideration of the facts set forth hereinabove (which are hereby incorporated into and made
a part of this Waiver), the parties hereby agree as follows:

 

1.
The Release Waiver. Subject to the satisfaction of the conditions set forth below, the Required Lenders agree to waive
the Release Defaults (solely with respect to the fact that such Release Proceeds were not paid to the Administrative Agent within
two Business Days of each Disposition of real property by each of the Original Releases; provided, however, that
if Borrowers do not pay the Eligible Property Proceeds on demand of the Required Lenders to the Administrative Agent in accordance
with Section 2 below, the Release Defaults shall be reinstated as if this Release Waiver had never been of effect).

 

2.
The Consents. The Required Lenders hereby (i) consent to the further delay in the payment of the Release Proceeds and ratify
the Original Releases, (ii) ratify their consent to Authorized Releases and the delay in the payment of the Authorized Proceeds
from such Authorized Releases and (iii) acknowledge that the Required Lenders, in their sole discretion, on a case by case basis
going forward, may consent to future Consent Releases and delay the payment of any Consent Proceeds related to any Consent Release;
provided, that for each such Consent Release, Parent submits to Required Lenders and Collateral Agent, not earlier than
one week prior to any requested Consent Release, an Officer’s Certificate in the form of Exhibit C attached hereto,
along with an updated Exhibit B and Schedule I to this Waiver attached thereto, adding the real property being released
under such Consent Release to Exhibit B and updating Schedule I to add the gross proceeds and the Net Proceeds related
to such Consent Release to the Eligible Property Proceeds, and the Required Lenders direct in writing (which may be in the form
of an email) that Collateral Agent releases the real property related to such Consent Release and the delay in the payment of
the Consent Proceeds until a later date to be determined by the Required Lenders.

 

3.
Conditions to Effectiveness. This Waiver shall become effective on the date on which Administrative Agent has received
executed original counterparts (or electronic copies followed promptly by originals) of this Waiver (the “Effective Date”).

 

4.
Effect of this Waiver. Borrowers agree that, except as expressly provided herein, (a) the Financing Agreement and each
Loan Document shall remain unmodified and in full force and effect, and (b) this Waiver shall not be deemed to be a waiver of,
consent to, a modification of or amendment to any other term or condition of the Financing Agreement, any Loan Document or any
other agreement by and between Borrowers, on the one hand, and Lenders and the Administrative Agent, on the other hand. This Waiver
shall be deemed a Loan Document.

 

5.
Reaffirmations of Borrowers. Each Borrower hereby (i) agrees that this Waiver shall not limit or diminish its obligations
under, or release it from any obligations under, the Financing Agreement and other Loan Documents, (ii) confirms and reaffirms
its obligations under the Financing Agreement and other Loan Documents, and (iii) agrees that the Financing Agreement and other
Loan Documents remain in full force and effect and are hereby ratified and confirmed.

 

    	2

    	 

    

 

6.
Representations and Warranties of Borrower. Each Borrower hereby represents, covenants and warrants to Administrative Agent
and Lenders as follows:

 

(a)
Upon the waiver of the Release Defaults, no Default or Event of Default exists under the Financing Agreement or any Loan Document
as of the date hereof or would result from the Release Waiver contemplated hereby;

 

(b)
the representations and warranties contained in Article VI of the Financing Agreement and in any Loan Document or which
are contained in any of the financial statements from time to time certified by the Borrower and furnished pursuant thereto, are
true and correct on and as of the date hereof (except that to the extent that such representations and warranties specifically
refer to an earlier date, they are true and correct in all material respects as of such earlier date (except that such materiality
qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality
in the text thereof));

 

(c)
it has the requisite corporate or organizational power and authority and has taken all necessary corporate and other organizational
action to authorize the execution, delivery and performance of this Waiver and the transactions contemplated hereby; and

 

(d)
this Waiver has been duly executed and delivered by such Borrower and constitutes a legal, valid and binding obligation of such
Borrower, enforceable in accordance with its terms.

 

7.
Severability. Any provision of this Waiver held by a court of competent jurisdiction to be invalid or unenforceable shall
not impair or invalidate the remainder of this Waiver and the effect thereof shall be confined to the provision so held to be
invalid or unenforceable. Furthermore, in lieu of each such invalid or unenforceable provision there shall be added automatically
as a part of this Waiver a valid and enforceable provision that comes closest to expressing the intention of such invalid unenforceable
provision.

 

8.
Release. Each Loan Party hereby acknowledges and agrees that, on the Effective Date: (a) neither it nor any of its Affiliates
has any claim or cause of action arising on or prior to the Effective Date against any Agent or any Lender (or any of their respective
Affiliates, officers, directors, employees, attorneys, consultants or agents) under the Financing Agreement and the other Loan
Documents and (b) each Agent and each Lender has, prior to the Date, properly performed and satisfied in a timely manner all of
its obligations prior to the Effective Date to such Loan Party and its Affiliates under the Financing Agreement and the other
Loan Documents. Notwithstanding the foregoing, the Agents and the Lenders wish (and each Loan Party agrees) to eliminate, to the
fullest extent permitted under applicable law, any possibility that any past conditions, acts, omissions, events or circumstances
which occurred prior to the Effective Date would impair or otherwise adversely affect any of the Agents’ and the Lenders’
rights, interests, security and/or remedies under the Financing Agreement and the other Loan Documents. Accordingly, for and in
consideration of the agreements contained in this Amendment and other good and valuable consideration, each Loan Party (for itself
and its Affiliates and the successors, assigns, heirs and representatives of each of the foregoing) (collectively, the “Releasors”)
does hereby fully, finally, unconditionally and irrevocably release and forever discharge each Agent, each Lender and each of
their respective Affiliates, officers, directors, employees, attorneys, consultants and agents (collectively, the “Released
Parties”) from any and all debts, claims, obligations, damages, costs, attorneys’ fees, suits, demands, liabilities,
actions, proceedings and causes of action, in each case, arising on or prior to the Effective Date, whether known or unknown,
contingent or fixed, direct or indirect, and of whatever nature or description, and whether in law or in equity, under contract,
tort, statute or otherwise, which any Releasor has heretofore had or now or hereafter can, shall or may have against any Released
Party by reason of any act, omission or thing whatsoever done or omitted to be done on or prior to the Effective Date and arising
out of, connected with or related in any way to this Amendment, the Financing Agreement or any other Loan Document, or any act,
event or transaction on or prior to the Effective Date related or attendant thereto, or the agreements of any Agent or any Lender
contained therein, or the possession, use, operation or control of any of the assets of each Loan Party, or the making of any
Loans, or the management of such Loans or the Collateral, in each case, on or prior to the Effective Date. 

 

    	3

    	 

    

 

As
to each and every claim released hereunder, each Loan Party also waives the benefit of each other similar provision of applicable
federal or state law (including without limitation the laws of the state of New York), if any, pertaining to general releases
after having been advised by its legal counsel with respect thereto.

 

Each
Loan Party acknowledges that it may hereafter discover facts different from or in addition to those now known or believed to be
true with respect to such claims, demands, or causes of action arising on or prior to the Effective Date and agrees that this
instrument shall be and remain effective in all respects notwithstanding any such differences or additional facts. Each Loan Party
understands, acknowledges and agrees that to the extent permitted under applicable law, the release set forth above may be pleaded
as a full and complete defense and may be used as a basis for an injunction against any action, suit or other proceeding which
may be instituted, prosecuted or attempted in breach of the provisions of such release.

 

Each
Loan Party, for itself and on behalf of its successors, assigns, and officers, directors, employees and agents, and any Person
acting for or on behalf of, or claiming through it, hereby absolutely, unconditionally and irrevocably, covenants and agrees with
and in favor of the Released Parties above that it will not sue (at law, in equity, in any regulatory proceeding or otherwise)
the Released Parties on the basis of any claim released, remised and discharged by such Person pursuant to this Section 8. Each
Loan Party further agrees that it shall not dispute the validity or enforceability of the Financing Agreement or any of the other
Loan Documents or any of its obligations thereunder, or the validity, priority, enforceability or the extent of Collateral Agent’s
Lien on any item of Collateral under the Financing Agreement or the other Loan Documents. If any Loan Party or any of its respective
successors, assigns, or officers, directors, employees and agents, or any Person acting for or on behalf of, or claiming through
it violate the foregoing covenant, such Person, for itself and its successors, assigns and legal representatives, agrees to pay,
in addition to such other damages as the Released Parties may sustain as a result of such violation, all reasonable attorneys’
fees and costs incurred by the Released Parties as a result of such violation.

 

    	4

    	 

    

 

Each
Lender hereby acknowledges and agrees that, on the Effective Date: (a) neither it nor any of its Affiliates has any claim or cause
of action arising on or prior to the Effective Date against Cortland Capital Market Services LLC, Colbeck Capital Management,
LLC or CB Agent Services LLC (or any of their respective Affiliates, officers, directors, employees, attorneys, consultants or
agents) under the Financing Agreement and the other Loan Documents and (b) each of Cortland Capital Market Services LLC, Colbeck
Capital Management, LLC, CB Agent Services LLC and their respective Affiliates has, prior to the Effective Date, properly performed
and satisfied in a timely manner all of its obligations prior to the Effective Date to such Lender and its Affiliates under the
Financing Agreement and the other Loan Documents. Notwithstanding the foregoing, Cortland Capital Market Services LLC, Colbeck
Capital Management, LLC, CB Agent Services LLC and their respective Affiliates wish (and each Lender agrees) to eliminate, to
the fullest extent permitted under applicable law, any possibility that any past conditions, acts, omissions, events or circumstances
which occurred prior to the Effective Date would give rise to any claim by any Lender against Cortland Capital Market Services
LLC, Colbeck Capital Management, LLC, CB Agent Services LLC and their respective Affiliates under the Financing Agreement and
the other Loan Documents. Accordingly, for and in consideration of the agreements contained in this Amendment and other good and
valuable consideration, each Lender (for itself and its Affiliates and the successors, assigns, heirs and representatives of each
of the foregoing) (collectively, the “Lender Releasors”) does hereby fully, finally, unconditionally and irrevocably
release and forever discharge Cortland Capital Market Services LLC, Colbeck Capital Management, LLC, CB Agent Services LLC and
each of their respective Affiliates, officers, directors, employees, attorneys, consultants and agents (collectively, the “Colbeck/Cortland
Released Parties”) from any and all debts, claims, obligations, damages, costs, attorneys’ fees, suits, demands,
liabilities, actions, proceedings and causes of action, in each case, arising on or prior to the Effective Date, whether known
or unknown, contingent or fixed, direct or indirect, and of whatever nature or description, and whether in law or in equity, under
contract, tort, statute or otherwise, which any Lender Releasor has heretofore had or now or hereafter can, shall or may have
against any Colbeck/Cortland Released Party by reason of any act, omission or thing whatsoever done or omitted to be done on or
prior to the Effective Date and arising out of, connected with or related in any way to this Amendment, the Financing Agreement
or any other Loan Document, or any act, event or transaction on or prior to the Effective Date related or attendant thereto, or
the agreements of Cortland Capital Market Services LLC, Colbeck Capital Management, LLC, CB Agent Services LLC or any of their
respective Affiliates contained therein, or the possession, use, operation or control of any of the assets of each Loan Party,
or the making of any Loans, or the management of such Loans or the Collateral, in each case, on or prior to the Effective Date.

 

As
to each and every claim released hereunder, each Lender hereby represents that it has received the advice of legal counsel with
regard to the releases contained herein, and having been so advised, specifically waives the benefit of the provisions of Section
1542 of the Civil Code of California which provides as follows:

 

“A
GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH A CREDITOR DOES NOT KNOW OR SUSPECT TO EXIST IN HIS FAVOR AT THE TIME OF EXECUTING
THE RELEASE, WHICH IF KNOWN BY HIM, MUST HAVE MATERIALLY AFFECTED HIS SETTLEMENT WITH THE DEBTOR.”

 

    	5

    	 

    

 

As
to each and every claim released hereunder, each Lender also waives the benefit of each other similar provision of applicable
federal or state law (including without limitation the laws of the state of New York), if any, pertaining to general releases
after having been advised by its legal counsel with respect thereto

 

9.
Governing Law. This Waiver shall be governed by, and construed in accordance with, the laws of the State of New York, without
regard to its conflicts of law principles.

 

10.
Counterparts. This Waiver may be executed in counterparts (and by different parties hereto in different counterparts),
and by facsimile transmission or other electronic means, which signatures shall be considered original executed counterparts,
each of which when so executed shall be deemed to be an original, but all of which when taken together shall constitute one and
the same instrument. Each party to this Waiver agrees that it will be bound by its own facsimile or other electronically transmitted
signature and that it accepts the facsimile or other electronically transmitted signature of each other party.

 

11.
Final Agreement. THIS WAIVER REPRESENTS THE ENTIRE EXPRESSION OF THE PARTIES WITH RESPECT TO THE SUBJECT MATTER HEREOF
ON THE DATE THIS WAIVER IS EXECUTED. THIS WAIVER MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT ORAL
AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES. NO MODIFICATION, RESCISSION, WAIVER, RELEASE
OR AGREEMENT OF ANY PROVISION OF THIS WAIVER SHALL BE MADE, EXCEPT BY A WRITTEN WAIVER SIGNED BY THE PARTIES HERETO.

 

[Signature
Page Follows]

 

    	6

    	 

    

 

IN
WITNESS WHEREOF, this Limited Waiver and Consent has been executed on the date first written above, to be effective upon satisfaction
of the conditions set forth herein.

 

	 	BORROWERS:
	 	 	 
	 	RHINO ENERGY LLC
	 	 	                           
	 	By:	/s/
    Richard A. Boone
	 	Name:	Richard
    A. Boone
	 	Its:	President
    and CEO
	 	 	 
	 	RHINO EXPLORATION LLC
	 	RHINO TECHNOLOGIES LLC
	 	SPRINGDALE LAND LLC
	 	CAM MINING LLC
	 	MCCLANE CANYON MINING LLC
	 	HOPEDALE MINING LLC
	 	CAM-OHIO REAL ESTATE LLC
	 	CAM-KENTUCKY REAL ESTATE LLC
	 	CAM-COLORADO LLC
	 	TAYLORVILLE MINING LLC
	 	LEESVILLE LAND LLC
	 	CAM AIRCRAFT LLC
	 	CASTLE VALLEY MINING LLC
	 	PENNYRILE ENERGY LLC
	 	 	 
	 	By:	/s/
    Richard A. Boone
	 	Name:	Richard
    A. Boone
	 	Its:	President
    and CEO

 

[Borrowers’
Signature Page to Limited Waiver]

 

    	 

    	 

    

 

	 	COLLATERAL
    AGENT AND ADMINISTRATIVE AGENT:
	 	 	 
	 	CORTLAND
    CAPITAL MARKET SERVICES LLC
	 	 	 
	 	By:	/s/
    Matthew Trybula
	 	Name:	Matthew
    Trybula
	 	Title:	Associate
    Counsel

 

[Administrative
Agent/Collateral Agent Signature Page to Limited Waiver]

 

    	 

    	 

    

 

	 	REQUIRED
    LENDERS:
	 	 	 
	 	COLBECK
    STRATEGIC LENDING MASTER, L.P.
	 	 	 
	 	By:	Colbeck
    Capital Management, LLC, its investment manager
	 	 	 
	 	By:	/s/
    Baabur Khondker
	 	Name:	Baabur
    Khondker 
	 	Title:	Chief
    Financial Officer

 

[Administrative Agent/Collateral Agent Signature Page to Limited Waiver]EX-10.1

 Exhibit 10.1 

AMENDMENT NO. 2 
 TO

 DISTRIBUTION TRUST AGREEMENT 

December 20, 2018 

This Amendment No. 2 (the “Amendment”) further amends the Distribution Trust Agreement, dated March 12, 2018, by
and among Mercantil Servicios Financieros, C.A., a Venezuela corporation (“MSF”), Mercantil Bank Holding Corporation, a Florida corporation (the “Company”) and TMI Trust Company, a Texas trust company, solely as
trustee and not in its individual capacity (the “Trustee”), as amended by Amendment No. 1 to the Trust Agreement, dated as of March 12, 2018 (as amended, the “Trust Agreement”). All capitalized terms not
otherwise defined herein have the meanings ascribed to them in the Trust Agreement. This Amendment shall be effective only as provided in Section 1. 

The Company and MSF believe it is necessary and appropriate to further amend the Trust Agreement to further provide with the offer and sale of
the Retained Shares, and the holding and investment of the proceeds of such sales. 
 In consideration of the premises and other good and
valuable consideration, the receipt and sufficiency of which are acknowledged, the parties hereto, intending to be legally bound, agree as follows: 
  

	1.	 Effectiveness of Amendment. This Amendment shall be effective only upon written notice from the Company
to the Trustee that the Company and MSF have entered into an underwriting agreement with Raymond James & Associates, Inc., as representative of the underwriters (the “Underwriting Agreement”) providing for the sale of
shares of Class A Stock, including certain Retained Shares. 

  

	2.	 Offering Proceeds. Section 5 of the Trust Agreement is amended by adding the following new
subsection (i): 

 Upon the sale of any Retained Shares pursuant to Sections 5(c) (including, for example, pursuant
to a public offering of Retained Shares pursuant to an effective registration statement under the Securities Act), or pursuant to Section 5(d) (including, for example, the repurchase by the Company of any Retained Shares
that are Class B Shares in a transaction where the Federal Reserve has no objections), any proceeds from such sale (“Proceeds”) shall be delivered to the Trustee to be held as Trust assets for the benefit of MSF or its
designee. The parties acknowledge that Proceeds shall be net of expenses and underwriters’ commissions, pursuant to the Separation Agreement, the Registration Rights Agreement between the Company and MSF dated as of June 12, 2018, the
October 5, 2018 letter agreement between the Company and MSF and any other agreements between the Company and MSF, or any underwriters’ agreement to which the Company and MSF are a 

 
party. Pending distribution of the Proceeds pursuant to this Section 5(i), the Trustee shall invest all Sale Proceeds as provided in, and subject to the terms of,
Exhibit 3. The Trustee shall deliver any Proceeds, net of the Company Allowance (as defined below), to MSF or its designee promptly as directed in writing by MSF or the MSF Representatives. The “Company
Allowance” is the aggregate dollar amount of any claims by the Company against MSF (or by a third party against the Company for which MSF is obligated to indemnify the Company), including in connection with the Separation Agreement, other
agreements between the Company and MSF, or any agreement with Raymond James & Associates, Inc. (individually or as Representative) to which the Company and MSF are a party (any such claims, “Company Claims”). The Company
shall give prompt written notice of any Company Claim to the Trustee, MSF, and the MSF Representatives, setting forth in reasonable detail the basis for the Company Claim and the good-faith estimate of the dollar amount of the Company Claim. The
Trustee shall be entitled to rely upon the information set forth in such notice, and shall add such estimated amount to the Company Allowance upon receipt of such notice. The Trustee shall release any funds constituting the Company Allowance only as
directed in written instructions from the Company and either MSF or an MSF Representative. The Trustee will not be liable to the Company for any Company Claims if there are insufficient Offering Proceeds remaining in the Trust at the time the
Company gives notice of a Company Claim. 
  

	3.	 Term of Trust. Section 6 of the Trust Agreement is amended and replaced in its entirety with the
following: 

 Term of Trust. The Term shall commence on the Delivery Date, and shall terminate on the Trust
Termination Date. The “Trust Termination Date” shall be date that all remaining Trust assets have been distributed as provided by this Trust Agreement, including Section 5(i). Neither a Control Event nor a
No Change in Control Certificate shall cause the Trust to terminate. 
 Except as amended above by this Amendment, the Trust and the
Agreement shall remain in full force and effect unmodified hereby. 
 [SIGNATURE PAGE FOLLOWS] 

 IN WITNESS WHEREOF, the parties hereto have caused this Amendment to the Trust Agreement to
be executed under seal by their respective duly authorized officers as of the date first above written. 
  

			
	MERCANTIL SERVICIOS FINANCIEROS, C.A.
		
	By:	 	/s/ Luis Alberto Fernandes
	Name:	 	Luis Alberto Fernandes
	Title:	 	General Counsel
	
	MERCANTIL BANK HOLDING CORPORATION
		
	By:	 	/s/ Millar Wilson
	Name:	 	Millar Wilson
	Title:	 	Chief Executive Officer
	
	TMI TRUST COMPANY, solely as trustee and not individually
		
	By:	 	/s/ Brandon M. Lisinski
	Name:	 	Brandon M. Lisinski
	Title:	 	Trust Officer

 [Signature Page to Amendment No. 2 to Distribution Trust Agreement] 

 Exhibit 3 

Investment Options for Proceeds 
 Select
one of the following investment options for all Proceeds by checking the appropriate box (if no box is checked, option 1 will be selected by default): 

Option 1: ☐ 
 Option 2:
☐ 
 Description of options: 
  

	 	1.	 Insured Cash Sweep (ICS) – a daily liquidity deposit product that places funds in demand deposit
accounts and/or money market demand accounts. The funds receive full FDIC insurance coverage of the entire deposit up to a limit of $150MM under a single tax ID. The current net yield on the ICS deposits is 1.700%. 

 

	 	2.	 CDARS (Certificate of Deposit Account Registry Service) – a fully FDIC insured, CD-based depositary product for up to $50MM under a single tax ID that provides for longer term investments or can be used to ladder investments according to timing needs. The investments in CDARS follow the
normal tenors of US Treasury securities at 4, 13, 26, and 52 weeks. Longer terms are also available, though seldom used. The current net yields for the CDARS are: 

4 weeks – 1.760% 
 13 weeks
– 1.910% 
 26 weeks – 2.030% 

52 weeks – 2.220%

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