Document:

Exhibit 10.15

 

STOCK
APPRECIATION RIGHTS AGREEMENT

PURSUANT TO THE

ADS-TEC ENERGY PUBLIC LIMITED COMPANY

2021 OMNIBUS INCENTIVE PLAN

 

*
* * * *

 

Participant:
____________________

Grant
Date: ____________________

Base
Price: $_____

Number
of Shares subject to this SAR: ____________________

 

*
* * * *

 

THIS
STOCK APPRECIATION RIGHTS AGREEMENT (this “Agreement”), dated as of the Grant Date specified above, is entered
into by and between Ads-Tec Energy Public Limited Company, an Irish public limited company duly incorporated under the laws of
Ireland (the “Company”), and the Participant specified above, pursuant to the Ads-Tec Energy Public Limited
Company2021 Omnibus Incentive Plan, as in effect and as amended from time to time (the “Plan”), which is administered
by the Committee; and

 

WHEREAS,
it has been determined under the Plan that it would be in the best interests of the Company to grant the Stock Appreciation Rights
(“SAR”) provided for herein to the Participant.

 

NOW,
THEREFORE, in consideration of the mutual covenants and promises hereinafter set forth and for other good and valuable consideration,
the parties hereto hereby mutually covenant and agree as follows:

 

1.
Incorporation By Reference; Plan Document Receipt. This Agreement is subject in all respects to the terms and provisions
of the Plan (including, without limitation, any amendments thereto adopted at any time and from time to time unless such amendments
are expressly intended not to apply to the Award provided hereunder), all of which terms and provisions are made a part of and
incorporated in this Agreement as if they were each expressly set forth herein. Any capitalized term not defined in this Agreement
shall have the same meaning as is ascribed thereto in the Plan. The Participant hereby acknowledges receipt of a true copy of
the Plan and that the Participant has read the Plan carefully and fully understands its content. In the event of any conflict
between the terms of this Agreement and the terms of the Plan, the terms of the Plan shall control.

 

2.
Grant of SAR. The Company hereby grants to the Participant, as of the Grant Date, a SAR on the number of shares
specified above. The SAR represents the right, upon exercise, to receive [either cash or] a number of shares of Common Stock [,
or a combination of cash and shares of Common Stock,] with a Fair Market Value on the date of exercise equal [, in each case,]
to the product of (i) the aggregate number of shares with respect to which this SAR is exercised and (ii) the excess of (A) the
Fair Market Value of a share of Common Stock as of the date of exercise over (B) the SAR Base Price specified above. Except as
otherwise provided by the Plan, the Participant agrees and understands that nothing contained in this Agreement provides, or is
intended to provide, the Participant with any protection against potential future dilution of the Participant’s interest
in the Company for any reason. The Participant shall have no rights as a stockholder with respect to any shares of Common Stock
covered by the SAR unless and until the Participant has become the holder of record of such shares, and no adjustments shall be
made for dividends in cash or other property, distributions or other rights in respect of any such shares, except as otherwise
specifically provided for in the Plan or this Agreement.

 

     

     

    

 

3.
Vesting and Exercise.

 

(a)
Vesting. Subject to the provisions of Sections 3(b) and 3(c) hereof, the SAR shall vest and become exercisable as follows,
provided that the Participant has not incurred a Termination prior to each such vesting date:

 

	Vesting
    Date	 	Number
    of Shares
	[●]	 	[●]
	[●]	 	[●]
	[●]	 	[●]
	[●]	 	[●]

 

There
shall be no proportionate or partial vesting in the periods prior to each vesting date and all vesting shall occur only on the
appropriate vesting date, subject to the Participant’s continued service with the Company or any of its Subsidiaries on
each applicable vesting date. Upon expiration of the SAR, the SAR shall be cancelled and no longer exercisable.

 

(b)
Committee Discretion to Accelerate Vesting. Notwithstanding the foregoing, the Committee may, in its sole discretion, provide
for accelerated vesting of the SAR at any time and for any reason.

 

(c)
[Termination Following a Change in Control. Change in Control vesting provisions to be determined on a case-by-case basis
by the Committee.]

 

(d)
Expiration. Unless earlier terminated in accordance with the terms and provisions of the Plan and/or this Agreement, all
portions of the SAR (whether vested or not vested) shall expire and shall no longer be exercisable after the expiration of ten
(10) years from the Grant Date.

 

4.
Termination. Subject to the terms of the Plan and this Agreement, the SAR, to the extent vested at the time of the
Participant’s Termination, shall remain exercisable as follows:

 

(a)
Termination due to Death or Disability. In the event of the Participant’s Termination by reason of death or Disability,
the vested portion of the SAR shall remain exercisable until the earlier of (i) one (1) year from the date of such Termination,
and (ii) the expiration of the stated term of the SAR pursuant to Section 3(d) hereof; provided, however, that in
the case of a Termination due to Disability, if the Participant dies within such one (1) year exercise period, any unexercised
SAR held by the Participant shall thereafter be exercisable by the legal representative of the Participant’s estate, to
the extent to which it was exercisable at the time of death, for a period of one (1) year from the date of death, but in no event
beyond the expiration of the stated term of the SAR pursuant to Section 3(d) hereof.

 

    - 2 -

     

    

 

(b)
Involuntary Termination Without Cause. In the event of the Participant’s involuntary Termination by the Company without
Cause, the vested portion of the SAR shall remain exercisable until the earlier of (i) ninety (90) days from the date of such
Termination, and (ii) the expiration of the stated term of the SAR pursuant to Section 3(d) hereof.

 

(c)
Voluntary Resignation. In the event of the Participant’s voluntary Termination (other than a voluntary Termination
described in Section 4(d) hereof), the vested portion of the SAR shall remain exercisable until the earlier of (i) ninety (90)
days from the date of such Termination, and (ii) the expiration of the stated term of the SAR pursuant to Section 3(d) hereof.

 

(d)
Termination for Cause. In the event of the Participant’s Termination for Cause or in the event of the Participant’s
voluntary Termination (as provided in Section 4(c) hereof) after an event that would be grounds for a Termination for Cause, the
Participant’s entire SAR (whether or not vested) shall terminate and expire upon such Termination.

 

(e)
Treatment of Unvested SAR upon Termination. Any portion of the SAR that is not vested as of the date of the Participant’s
Termination for any reason shall terminate and expire as of the date of such Termination.

 

5.
Method of Exercise. Subject to Section 8, to the extent that all or a portion of the SAR has become vested and exercisable,
such portion of the SAR may thereafter be exercised by the Participant, in whole or in part, at any time or from time to time
prior to the expiration of the SAR as provided herein and in accordance with Sections 7.4(c) and 7.4(d) of the Plan, including,
without limitation, by the filing of any written form of exercise notice as may be required by the Committee.

 

6.
Non-Transferability. The SAR, and any rights and interests with respect thereto, issued under this Agreement and
the Plan shall not be sold, exchanged, transferred, assigned or otherwise disposed of in any way by the Participant (or any beneficiary(ies)
of the Participant), other than by testamentary disposition by the Participant or the laws of descent and distribution. Any attempt
to sell, exchange, transfer, assign, pledge, encumber or otherwise dispose of or hypothecate in any way the SAR, or the levy of
any execution, attachment or similar legal process upon the SAR, contrary to the terms and provisions of this Agreement and/or
the Plan shall be null and void and without legal force or effect.

 

7.
Governing Law. All questions concerning the construction, validity and interpretation of this Agreement shall be
governed by, and construed in accordance with, the laws of the State of Delaware, without regard to the choice of law principles
thereof.

 

8.
Withholding of Tax. The Company shall have the power and the right to deduct or withhold, or require the Participant
to remit to the Company, an amount sufficient to satisfy any federal, state, local and foreign taxes of any kind (including, but
not limited to, the Participant’s FICA and SDI obligations) which the Company, in its sole discretion, deems necessary to
be withheld or remitted to comply with the Code and/or any other applicable law, rule or regulation with respect to the SAR and,
if the Participant fails to do so, the Company may otherwise refuse to issue or transfer any shares of Common Stock otherwise
required to be issued pursuant to this Agreement. Any minimum statutorily required withholding obligation with regard to the Participant
may, with the consent of the Committee, be satisfied by reducing the amount of cash or shares of Common Stock otherwise deliverable
upon exercise of the SAR.

 

    - 3 -

     

    

 

9.
Entire Agreement; Amendment. This Agreement, together with the Plan, contains the entire agreement between the parties
hereto with respect to the subject matter contained herein, and supersedes all prior agreements or prior understandings, whether
written or oral, between the parties relating to such subject matter. The Committee shall have the right, in its sole discretion,
to modify or amend this Agreement from time to time in accordance with and as provided in the Plan. This Agreement may also be
modified or amended by a writing signed by both the Company and the Participant. The Company shall give written notice to the
Participant of any such modification or amendment of this Agreement as soon as practicable after the adoption thereof.

 

10.
Notices. Any notice hereunder by the Participant shall be given to the Company in writing and such notice shall
be deemed duly given only upon receipt thereof by the General Counsel of the Company. Any notice hereunder by the Company shall
be given to the Participant in writing and such notice shall be deemed duly given only upon receipt thereof at such address as
the Participant may have on file with the Company.

 

11.
No Right to Employment. Any questions as to whether and when there has been a Termination and the cause of such
Termination shall be determined in the sole discretion of the Committee. Nothing in this Agreement shall interfere with or limit
in any way the right of the Company, its Subsidiaries or its Affiliates to terminate the Participant’s employment or service
at any time, for any reason and with or without Cause.

 

12.
Transfer of Personal Data. The Participant authorizes, agrees and unambiguously consents to the transmission by
the Company (or any Subsidiary) of any personal data information related to the SAR awarded under this Agreement for legitimate
business purposes (including, without limitation, the administration of the Plan). This authorization and consent is freely given
by the Participant.

 

13.
Compliance with Laws. The issuance of this SAR (and any shares of Common Stock upon exercise of this SAR) pursuant
to this Agreement shall be subject to, and shall comply with, any applicable requirements of any foreign and U.S. federal and
state securities laws, rules and regulations (including, without limitation, the provisions of the Securities Act, the Exchange
Act and in each case any respective rules and regulations promulgated thereunder) and any other law or regulation applicable thereto.
The Company shall not be obligated to issue the SAR or any of the shares pursuant to this Agreement if any such issuance would
violate any such requirements.

 

14.
Section 409A. Notwithstanding anything herein or in the Plan to the contrary, this SAR award is intended to be exempt
from the applicable requirements of Section 409A of the Code and shall be limited, construed and interpreted in accordance with
such intent.

 

    - 4 -

     

    

 

15.
Binding Agreement; Assignment. This Agreement shall inure to the benefit of, be binding upon, and be enforceable
by the Company and its successors and assigns. The Participant shall not assign (except in accordance with Section 6 hereof) any
part of this Agreement without the prior express written consent of the Company.

 

16.
Headings. The titles and headings of the various sections of this Agreement have been inserted for convenience of
reference only and shall not be deemed to be a part of this Agreement.

 

17.
Counterparts. This Agreement may be executed in one or more counterparts, each of which shall be deemed to be an
original, but all of which shall constitute one and the same instrument.

 

18.
Further Assurances. Each party hereto shall do and perform (or shall cause to be done and performed) all such further
acts and shall execute and deliver all such other agreements, certificates, instruments and documents as either party hereto reasonably
may request in order to carry out the intent and accomplish the purposes of this Agreement and the Plan and the consummation of
the transactions contemplated thereunder.

 

19.
Severability. The invalidity or unenforceability of any provisions of this Agreement in any jurisdiction shall not
affect the validity, legality or enforceability of the remainder of this Agreement in such jurisdiction or the validity, legality
or enforceability of any provision of this Agreement in any other jurisdiction, it being intended that all rights and obligations
of the parties hereunder shall be enforceable to the fullest extent permitted by law.

 

20.
Acquired Rights. The Participant acknowledges and agrees that: (a) the Company may terminate or amend the Plan at
any time; (b) the award of the SAR made under this Agreement is completely independent of any other award or grant and is made
at the sole discretion of the Company; (c) no past grants or awards (including, without limitation, the SAR awarded hereunder)
give the Participant any right to any grants or awards in the future whatsoever; and (d) any benefits granted under this Agreement
are not part of the Participant’s ordinary salary, and shall not be considered as part of such salary in the event of severance,
redundancy or resignation.

 

21.
Data Privacy and Sharing. As a condition of the granting of the Award, the Participant acknowledges and agrees that
it is necessary for some of the Participant’s personal identifiable information to be provided to certain employees of the
Company, the third party data processor that administers the Plan and the Company’s designated third party broker in the
United States. These transfers will be made pursuant to a contract that requires the processor to provide adequate levels of protection
for data privacy and security interests in accordance with the General Data Protection Regulation (EU 2016/679) and the implementing
legislation of the Participant’s home country. By accepting the Award, the Participant acknowledges having been informed
of the processing of the Participant’s personal identifiable information described in the preceding paragraph and consents
to the Company collecting and transferring to the Company’s, and to the extent applicable, any independent benefit plan
administrator or third party broker, the Participant’s personal data that are necessary to administer the Award and the
Plan. The Participant understands that his or her personal information may be transferred, processed and stored outside of the
Participant’s home country in a country that may not have the same data protection laws as his or her home country, for
the purposes mentioned in this Award Agreement.

 

    - 5 -

     

    

 

IN
WITNESS WHEREOF, the parties hereto have executed this Agreement as of the date first written above.

 

	 	ADS-TEC ENERGY PUBLIC LIMITED COMPANY
	 	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 

 

 

	 	PARTICIPANT
	 	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 

 

    - 6 -Exhibit
10.18

 

 

 

	Guarantee
    Credit Framework Contract

    ☐
    Credit suretyship
	 	Am
                                            Hauptbahnhof 2

                           70173
                           Stuttgart

                           Telephone
                           0711 127-42463

                           Fax
                           0711 127-6642463

                           Carmen.Herdter@LBBW.de

	 	 	 
	 	 	Account

        6465188547

	 	 	 
	 	 	Reference
                                            number

        1153327076/3363/RPf

 

ads-tec Energy
GmbH

Heinrich-Hertz-Str.
1, 72622 Nürtingen

 

-
hereinafter referred to as the Borrower - hereby concludes an agreement with the Bank on the assumption of suretyships in document form
or in the form of an electronic liability declaration in favor of the Borrower up to a total amount of

	EUR 15,000,000.00	x

 

The
following terms and conditions shall apply to the framework contract in addition to the attached Terms and Conditions for the Guarantee
Business:

 

1 Guarantee
account

 

The Borrower
shall be debited under guarantee account 6465188547 for the suretyships assumed by the Bank.

 

2 Guarantee
commission

 

For
the suretyships assumed within the framework of this contract, the Bank shall charge the commission rates it sets for guarantee credits
of this type,

 

☐ currently
on a one-time basis ____________% of the suretyship amount, not less than

EUR ______________________

☒ the
rate set by the Bank for guarantee credits of this type, currently

☐
per month ____________________% of the suretyship amount

☒
per calendar_______________year see section 4 % of the suretyship amount,

not
less than EUR  __________________________________________________.

 

The guarantee
commission shall be calculated on a monthly basis. Next closing date: 7/31/2020.

 

 

The Borrower
shall receive the debit notification separately. Changes of the guarantee commission shall be communicated to the Borrower.

Debiting
agreement:

		☒	The
                                            debit shall be charged to account DE88600501010405071830 at our bank.

		☐	The
                                            debit shall be made in accordance with SEPA Direct Debit mandate.

 

	 	Mandate
reference:		 
	 	Creditor
ID:		 

 

If no value-added
tax is billed, it is a VAT-exempt financial service. If the Borrower does not object in text form, including explanation of its legitimate
interests (in particular, no right to input tax deduction), within four weeks of the posting of the value-added tax, the Bank shall continue
to invoice the credit costs, plus value-added tax at the statutory rate. The Borrower shall also have the right to object if its right
to input tax deduction changes at a later point in time.

 

	Landesbank
    Baden-Württemberg

    Public
    Institution

    Domiciles:

    Stuttgart,
    Karlsruhe,

    Mannheim,
    Mainz

    07/20
	HRA 12704

    Stuttgart
    District Court

    HRA 4356,
    HRA 104 440

    Mannheim
    District Court

    HRA 40687

    Mainz
    District Court
	Bank
    routing number 600 501 01

    BIC/SWIFT
    Code SOLADEST600

    VAT ID
    no. DE 147 800 343

    kontakt@LBBW.de

    www.LBBW.de
	Management
    Board:

    Rainer
    Neske (Chairman)

    Karl
    Manfred Lochner, Dr. Christian Ricken, Thorsten Schönberger, Volker Wirth

    General
    Agent: Andreas Götz

 

[horizontal
text in left margin]

191 925.000
B D2 LBBW (Sep. 2017 version) - v5.2 - o kre 3880096/0

 

    Page 1 of 4

    

    

  

	 	Account
	 	6465188547

 

3 Amount of the obligation

At the time of the assumption of a suretyship, the Borrower shall receive
a separate communication concerning the amount of the obligation arising from this framework contract. If the suretyship has been assumed
in document form, the communication shall be made by mail; in the case of an electronic liability declaration, the communication shall
be made by means of placement into the electronic mailbox. The Bank shall be authorized to obtain information from the obligees concerning
the respective amount of the guaranteed obligations.

 

4 Specific agreements

Guarantee commission

Until further notice 2.000% p.a. on the respective drawdowns of the
guarantee credit framework as a result of warranties.

  

 

 

Guarantee commission

Until further notice 2.000% p.a. on the respective drawdowns of the
guarantee credit framework as a result of performance guarantees and bid guarantees (particularly down payment/prepayment guarantee,
contractual performance guarantee, bidding guarantee, builder security (in accordance with § 648a BGB), bidding/tender guarantee,
guarantee in accordance with § 7 MaBV [Makler- und Bauträgerverordnung (Broker and Builder Regulations)], completion
bond, freight payment deferment guarantee, guarantee for the legal existence of assigned receivables, bill of lading guarantee, performance
guarantee, delivery guarantee, rent guarantee, litigation guarantee, tax deferment guarantee, customs guarantee).

 

 

 

Continuation of the existing credit/loan contract

The existing credit/loan contract dated 11/22/2018, account number/IBAN
6465105166 (including contractual amendments that have taken place in the interim), is continued in the version of this contractual document.

 

If collateral is furnished by third parties, the continuation contract
does not come into existence until after their consent is received. The continuation contract shall become invalid if only one third-party
collateral provider makes use of revocation with respect to his consent.

 

 

 

Obligation to conclude building insurance contract

This credit/loan requires the conclusion and/or
continued existence of the contract concerning building insurance. The Borrower therefore promises to maintain value-appropriate building
insurance for the encumbered property/properties in accordance with the separate declaration(s) of purpose for land charges or - if the
Borrower is not itself the owner of the encumbered property/properties - ensure that value-appropriate building insurance exists.

 

 

  

Right of termination on the part of the Bank in the event of change
of control

The basis for the grant of the credit is the fact that ads-tec Holding
GmbH has a direct or indirect majority interest in the Borrower and that said equity interest remains in existence.

 

The Bank shall have a right of extraordinary termination - without
prejudice to the right of extraordinary termination for other good cause (for example, no. 26 (2) of the Bank’s General Business
Terms and Conditions) - if ads-tec Holding GmbH sells its direct or indirect equity interest(s) to third parties in whole or in part or
encumbers or otherwise disposes of such equity interest(s) and/or if the voting rights change in such a manner that the aforementioned
requirements for the granting of the credit are no longer met after the disposition or change takes effect. Third parties in this sense
shall not include a current shareholder / a person from the family / heirs of a current shareholder by way of statutory, testamentary
or inter vivos succession / spouses or registered domestic partners of a current shareholder / a family foundation of the shareholder
family or of one or more shareholders.

 

The Bank shall not be deemed to waive its rights under this agreement
as a result of the fact that it does not, or does not promptly, assert them in individual cases or on a repeated basis.

 

 

 

The maximum amount, up to which the guarantee framework credit can
be utilized, shall be reduced

 

to EUR 10,000,000.00 from 3/1/2021 through 4/30/2022

to EUR 5,000,000.00 from 5/1/2022 through 12/31/2023

 

    Page 2 of 4

    

    

 

	 	Account
	 	6465188547

  

The term of the guarantee framework credit is already apparent from
the described reduction of the maximum amount of the credit. Accordingly, the last partial credit amount of EUR 5,000,000.00 shall be
due on 12/31/2023 without the need for termination. Term extensions can only take place by agreement.

 

5 Collateral

The Bank is entitled to not assume suretyships until all requirements
are met for the agreed upon collateral to be irrevocably at the Bank’s disposal and the Bank has received confirmation of this,
where appropriate. The following collateral will be/has been created/assigned to the Bank - in separate contracts that regulate the details:

 

First-position land charge in favor of Landesbank Baden-Württemberg
for a total of EUR 3,500,000.00 on the property at Dresdner Tor 1, 01723 Wilsdruff, in accordance with separate declaration of purpose.

 

Land charge in favor of Landesbank Baden-Württemberg for a total
of EUR 4,000,000.00 on the property at Heinrich-Hertz-Str. 1, 72622 Nürtingen, in accordance with separate declaration of purpose.

 

First-position land charge in favor of Landesbank Baden-Württemberg
for a total of EUR 2,000,000.00 on the property at Heinrich-Hertz-Str. 1, 72622 Nürtingen, in accordance with separate declaration
of purpose.

 

Comfort letter from Robert Bosch GmbH, Junkerstr. 20-24, 73249 Wernau,
for the total credit framework of EUR 15,000,000.00.

 

Location-specific security assignment of warehouse (goods transferred
as security, Dresdner Tor 1, 01723 Wilsdruff) according to separate contract.

Location-specific security assignment of warehouse (goods transferred
as security, Heinrich-Hertz-Str. 1, 72622 Nürtingen) according to separate contract.

Location-specific security assignment of warehouse (goods transferred
as security, Hühndorfer Höhe 2+15, 01723 Wilsdruff) according to separate contract.

Location-specific security assignment of warehouse (goods transferred
as security, Nürtinger Str. 25, 73257 Köngen) according to separate contract.

Location-specific security assignment of warehouse (goods transferred
as security, Potthoffstr. 7, 01159) according to separate contract.

Location-specific security assignment of warehouse (goods transferred
as security, Schwabacher Str. 1-5, 01665 Klipphausen) according to separate contract.

 

Suretyships:

from ads-tec Holding GmbH, Heinrich-Hertz-Str. 1, 72622 Nürtingen,
originally for EUR 40,050,000.00

from ads-tec Industrial IT GmbH, Heinrich-Hertz-Str. 1, 72622 Nürtingen,
for EUR 15,000,000.00

in accordance with separate suretyship declarations.

 

Assignment of claims in accordance with separate assignment contract.

 

The scope of collateral is apparent from the separate collateral contracts.

 

The liability of any already existing or other future collateral within
the framework of the respective agreed upon security purpose shall remain unaffected hereby.

 

6 Multiple Borrowers

Multiple Borrowers shall be liable for the obligations arising from
this contract as joint and several obligors.

If the Bank is satisfied by one Borrower, the Bank shall not check
to determine whether such Borrower has rights to collateral the Bank no longer needs. In principle, it shall return such collateral to
the collateral provider, unless the performing Borrower proves that the collateral provider’s consent to the surrender to the Borrower
has been received.

 

7 Drawdown from the suretyship

If a claim is made against the Bank arising from a suretyship, the
Borrower shall be obligated to immediately reimburse the Bank for the amounts paid toward the suretyship. The Bank shall be entitled to
place its reimbursement claim into the Borrower’s current account.

 

8 Contract term

The contract is concluded for an indefinite term and can be terminated
by each party at any time without compliance with a termination notice period. The provisions of this contract shall continue to apply
to the suretyships already assumed at the time of termination. However, the Bank can - without prejudice to the release claim under §
775 BGB [Bürgerliches Gesetzbuch (Civil Code)] - demand from the Borrower that it be released from such suretyship obligations.

 

9 Duty to disclose and inform

If an appropriate ground exists, the Borrower shall be required during
the entire term of this credit to grant the Bank, or an office engaged by the Bank, inspection of the current economic circumstances,
deliver informative documents in this regard (for example, balance sheets/annual financial statements, income tax notices and returns,
asset overviews, etc.), give the needed information, and enable inspection of its business operation. The Bank is also obligated based
on statutory and supervisory requirements to cause the Borrower’s economic circumstances to be disclosed.

 

The Bank can request the documents required therefor directly from
the Borrower’s advisors in bookkeeping and tax matters if, upon request by the Bank, the Borrower does not submit them to the Bank
within a reasonable time period of not less than one month.

 

    Page 3 of 4

    

    

 

	 	Account
	 	6465188547

 

If the stated documents are stored on data carriers, the Borrower shall
be obligated to make them legible within a reasonable time period.

 

The Bank shall be entitled to terminate the credit relationship with
immediate repayment if the Borrower fails to meet this obligation.

If an appropriate ground exists, the Bank shall be entitled to inspect
the public registers, as well as the land register and land files, and request simple or certified copies and extracts at the Borrower’s
expense, as well as obtain information from insurance companies, governmental authorities, and other entities, particularly credit institutions,
that are necessary to the evaluation of the credit relationship.

 

10 Costs of the contract

The Borrower shall bear the costs of creation of collateral. The reimbursement
of the Bank’s expenditures shall be oriented to the statutory provisions.

 

11 Place of jurisdiction

If the jurisdiction of the Bank’s place of jurisdiction does
not already arise from § 29 ZPO [Zivilprozessordnung (Code of Civil Procedure)], the Bank can pursue its claims by way of
judicial complaint at its general place of jurisdiction if the Borrower, against which legal action is being taken, is a Kaufmann
[statutory “businessperson”] or a legal entity within the meaning of no. 6 AGB [Allgemeine Geschäftsbedingungen
(General Business Terms and Conditions)] or does not, at the time of the conclusion of the contract, have a general place of jurisdiction
domestically or later relocates his permanent place of residence or habitual place of abode outside of the Federal Republic of Germany,
or if his permanent place of residence or habitual place of abode is unknown at the time of the filing of the complaint.

 

12 Statutory duty to cooperate

The Borrower is obligated under the Geldwäschegesetz [Money
Laundering Act] to promptly notify the Bank of any changes that in the course of the business relationship arise with respect to the statements
made to the Bank.

 

13 Information concerning the beneficial owner in accordance with
the Geldwäschegesetz

The Borrower is acting in its own economic interest, not at the behest
of a third party (particularly a trustor):

☒ Yes ☐ No

Beneficial owner: The Borrower is acting in the economic interest
and at the behest of the person(s) listed below:

(last name, first name(s), date of birth, place of birth,
citizenship, address, taxpayer/business identification number*)

 

 

		*	Domestic taxpayers: Taxpayer ID in the case of natural persons,
business ID in the case of other domestic taxpayers (if a business ID has not yet been issued, the taxpayer number applicable to the
income)

 

14 General business terms and conditions

The Bank expressly points out that its General Business Terms and Conditions
(AGB) are a supplemental component of the contract. The General Business Terms and Conditions can be examined on the Bank’s business
premises and shall be made available upon request.1

 

1 Each contracting party of the Bank shall receive one copy
of the General Business Terms and Conditions, if a business relationship does not yet exist and the contract is concluded outside of the
Bank.

 

	Place, date	 	Place, date
	Nürtingen, 7/14/2020	 	Stuttgart, 7/9/2020
	 	 	 
	Signature(s) of the Borrower	 	Signature(s) of the Bank
	 	 	 
	/s/ Thomas Speidel     /s/ Robert Vogt	 	/s/ Carmen Herdter     /s/ Daniela Klinlger
	ads-tec Energy GmbH	 	Landesbank Baden-Württemberg

 

The contract and additional copies are to be signed on all pages
by the Borrowers named on page 1!

Appendix: Terms and Conditions for the Guarantee Business

 

Legitimation check/Identification:

Last name, first name, date of birth, place of birth, citizenship,
address, type of legitimation (ID type, ID number, issued by) or reference to completed legitimation/identification:

 

    Page 4 of 4

    

    

 

 

	 

     

    Terms
    and Conditions for the Guarantee Business
	Am Hauptbahnhof
    2

    70173
    Stuttgart

    Telephone
    0711 127-42463

    Fax 0711
    127-6642463

    Carmen.Herdter@LBBW.de

 

June 2018
version

 

	The Bank
    assumes suretyships and guaranties on behalf of clients in document form or in the form of an electronic liability declaration -
    hereinafter referred to uniformly as the Liability Assurance - under the following terms and conditions:

     

    1.
    Direct/Indirect Liability Assurance, drafting

    At the
    client’s election, the Bank can issue the Liability Assurance in the form of a document or in the form of an electronic Liability
    Assurance. The Bank issues Liability Insurances in the form of a document to the client in paper form. The Bank transmits Liability
    Assurances in the form of an electronic liability declaration to the client by means of placement into the client’s electronic
    mailbox.

    The Liability
    Assurance in document form can be created by the Bank itself (direct Liability Assurance) or through a different credit institution
    (second bank). Liability Assurances in the form of an electronic liability declaration are only created by the Bank itself.

    If the
    Bank or second bank follows instructions of the principal in drafting the document or the electronic liability declaration concerning
    the assumption of the Liability Assurance, it has no obligation to the principal to review or inform.

    Liability
    Assurances in the form of a suretyship document or an electronic liability declaration are assumed by the Bank on a directly enforceable
    basis under waiver of the defenses of voidability and offset.

     

    2.
    Guarantee account/Guarantee commission

    Upon
    handover/dispatch of the document or dispatch of the order to the second bank to create a Liability Assurance or as a result of the
    placement of the electronic liability declaration into the principal’s electronic mailbox, the principal’s guarantee
    account is debited with the promised amount. From that point on, the principal is charged a guarantee commission on the debited amount
    until deletion. In the event of later utilization, the guarantee commission must be retroactively remitted until payment is made.

     

    3.
    Return of the document, release from liability

    After
    the end/handling of the Liability Assurance, the principal shall be required to ensure the return of the document or, alternatively,
    the release of the Bank from liability. In the case of an electronic liability declaration, the principal shall be required to ensure
    the delivery of a liability release declaration by the beneficiary to the Bank.

     

    4.
    Deletion

    In the
    case of direct Liability Assurances, for which an expiration date is designated in the document or electronic liability declaration,
    the Bank shall delete the debit from the guarantee account after the end of the expiration date if the following requirements are
    met:

    -
    the Liability Assurance expires according to its unambiguous wording if, prior to the end of the expiration date, no utilization
    takes place and

    -the
    Liability Assurance is governed by German law and

    -a
    claim has not been asserted against the Bank in a timely manner.

    If the
    beneficiary asserts a claim against the Bank arising from the Liability Assurance based on foreign law in such case after the end
    of the expiration date, the Bank shall only pay if there is a payment authorization from the principal or an enforceable decision
    ordering payment.
	In the
    other cases, the Bank shall delete the amount of the Liability Assurance in the guarantee account, if it has received back the document
    issued concerning the Liability Assurance or has been unambiguously released from liability by the beneficiary or, as the case may
    be, the second bank. If the subject matter of the Liability Assurance is a litigation guarantee, in the case of which the beneficiary’s
    consent is required to return the document, the Bank does not have to delete the debited amount until upon proof of such consent
    is provided.

     

    5.
    Review of documents

    If the
    Bank has to receive documents/declarations in connection with the Liability Assurance, it shall exercise the care of a reasonable
    and prudent businessperson in reviewing whether they conform to the external form according to the terms and conditions for utilization
    of the Liability Assurance.

    The Bank
    shall not bear any further review obligations, particularly with respect to the authenticity and genuineness, formal correctness,
    completeness, or legal validity of the documents/declarations or the general or specific terms and conditions contained in them or
    with respect to the correctness of translations included with delivery.

    Declarations
    are also to be viewed as proper if they have been transmitted via fax, email, telex, or other communications methods.

     

    6.
    Reimbursement of expenditures

    The reimbursement
    of the Bank’s expenditures shall be oriented to the statutory provisions.

    If the
    Bank is not able to debit the expenditures to a current account within the framework of a balance or line of credit, then the interest,
    fees, and commissions generally charged by the Bank for tolerated account overdrafts must be paid.

     

    7.
    Collateral

    The Bank’s
    lien secures its claims arising from issued orders to assume Liability Assurances starting from the point in time of the Liability
    Assurance.

    In accordance
    with the provision concluded in no. 22 AGB [Standard Business Terms and Conditions], the principal is obligated, upon request, to
    provide the Bank with bank collateral or cash collateral or increase existing collateral if a change in the risk situation arises
    as a result of circumstances that subsequently occur or become known.

    Without
    prejudice to other security, all claims that accrue to the principal against the beneficiary in connection with the utilization of
    the Liability Assurance are assigned to the Bank to secure the Bank’s expenditure reimbursement claim. The Bank shall undertake
    the re-assignment of the claims as soon as it has been satisfied with respect to all of its claims against principal.

     

    8.
    Place of jurisdiction

    If the
    principal is a Kaufmann [statutory “businessperson”], a public entity, or a special public fund, the Bank can
    sue at its general place of jurisdiction and can only be sued at that place of jurisdiction.

 

	Landesbank
    Baden-Württemberg

    Public
    Institution

    Domiciles:

    Stuttgart,
    Karlsruhe,

    Mannheim,
    Mainz

    07/20
	HRA 12704

    Stuttgart
    District Court

    HRA 4356,
    HRA 104 440

    Mannheim
    District Court

    HRA 40687

    Mainz
    District Court
	Bank
    routing number 600 501 01

    BIC/SWIFT
    Code SOLADEST600

    VAT ID
    no. DE 147 800 343

    kontakt@LBBW.de

    www.LBBW.de
	Management
    Board:

    Rainer
    Neske (Chairman)

    Karl
    Manfred Lochner, Dr. Christian Ricken, Thorsten Schönberger, Volker Wirth

    General
    Agent: Andreas Götz

[horizontal
text in left column]

191 905.000
B D1 So LBBSW (June 2018 version) - v3.1 - 0

© Deutscher
Sparkassenverlag

    Page 1 of 1

    

    

   

	

    Operating equipment

    framework
    credit contract
	Landesbank
    Baden-Württemberg

    Am Hauptbahnhof
    2

    70173
    Stuttgart

    Taxpayer
    no. 2899/014/09009

    VAT ID
    no. DE 147 800 343
	

 

Client
copy

 

	Checking
    account no. / IBAN

    Our
    reference

    Your
    contact person

    Telephone

    Date
	DE88
    6005 0101 0405 0718 30

    7752
    H / ki

    Carmen
    Herdter

    +49 711
    127-42463

    January
    4, 2021

 

ads-tec Energy
GmbH

Heinrich-Hertz-Str.
1

72622 Nürtingen

-
hereinafter referred to as the “Borrower” -

 

shall receive
from

 

Landesbank
Baden-Württemberg

-
hereinafter referred to as the “Bank” or “Lender” -

 

a framework
credit up to the maximum amount of

 

EUR 15,000,000.00

 

The maximum
amount, up to which the framework credit can be utilized, shall be reduced to EUR 10,000,000.00 from 3/1/2021 through 12/23/2023.

 

In the case
of utilization as an overdraft facility, the Borrower shall be obligated to immediately settle any overdraft that arises on the respective
closing dates as a result. In all other respects, the term of the loan is regulated in the “Term/Termination” section of
this framework credit contract.

 

1.
Utilization possibilities

 

The framework
credit can electively be utilized as: overdraft facility, guarantee credit (but not for credit insurances), letters of credit.

 

All of the
Borrower’s orders opening letters of credit are credited toward this framework credit contract, even if they were issued prior
to the conclusion of this framework credit contract. The provisions of this framework credit contract shall apply on a supplemental basis
to such orders opening letters of credit.

 

The existing
credit contract dated 7/9/2020, account DE88 6005 0101 0718 30 shall be continued in the version of this contractual document.

If collateral
is created by third parties, this framework credit contract shall not come into existence until their consent has also been received.
This framework credit contract shall become invalid if only one third-party collateral provider makes use of a right of revocation with
respect to his consent.

 

2.
Conditions

 

2.1
Overdraft facility

 

	Debit
    interest rate for credit drawdowns in euro (drawdowns up to the maximum amount)	 	The
    debit interest rate is at least 0.00% p.a. (minimum interest rate). In compliance with this minimum interest rate, a variable debit
    interest rate is agreed upon.

    The variable
    debit interest rate is initially 5.959% p.a.

    The variable
    debit interest rate shall be computed from the 3-month EURIBOR (= reference interest rate), plus a fixed-term premium (see below)
    of 6.50 percentage points

	Debit
    interest rate adjustment	 	The adjustment
    of the debit interest rate shall be oriented to a change in the following reference interest rate: 3-month EURIBOR.

     

    The value
    of the reference interest rate determined on 12/30/2020 shall determine the current debit interest rate.

     

    The Bank
    shall regularly check the development of the reference interest rate two banking business days prior to the beginning of each following
    calendar month. If the reference interest rate has changed at that point in time compared to its prior governing value, the variable
    debit interest rate shall automatically fall or rise by the same percentage points effective on the 1st day of the following
    calendar month.

 

2401903
02/20 Type 1108

 

    Page 1 of 9

    

    

 

	 	 	The relevant
    interest payments shall nevertheless be posted in one total sum on the Borrower’s account statement.

     

    The respective
    current reference interest rate can be examined on the Bank’s business premises, as well as on the Internet at www.bundesbank.de.

     

	Term
    of the premium on the reference interest rate	 	The aforementioned
    premium on the 3-month EURIBOR shall initially apply through 12/31/2021. However, the premium shall continue to apply on an unchanged
    basis for consecutive one-year terms, unless the Borrower or the Bank objects to the continued applicability of the premium by not
    later than one month prior to the expiration of that term or a following term of the premium. In the event of objection, the Bank
    shall submit a new offer of conditions to the Borrower.

     

    Failure
    to reach an agreement following objection by the Borrower: If, in the event of objection by the Borrower, a new agreement on
    the premium does not - for whatever reason - materialize by the expiration of the respective term of the premium, the Borrower shall
    be entitled to terminate the credit effective immediately within six weeks (from expiration of the respective term of the premium).
    If the Lender does not make use of said right of termination, the credit relationship shall be continued with the variable debit
    interest rate and the existing premium. However, the foregoing provision concerning the term of the premium and the right of objection
    of the Borrower and the Bank shall continue to apply. This means that the premium shall remain limited in time and shall be extended
    for an additional year without change, unless the Borrower or the Bank objects to its continued application in a timely manner prior
    to the expiration of the term of the premium.

     

    The statutory
    and other contractual termination rights of the Borrower (for example, no. 17 (5) of the Bank’s General Business Terms and
    Conditions) shall remain unaffected.

     

    Failure
to reach an agreement following objection by the Bank: If, in the event of objection by the Bank, a new agreement on the premium
does not - for whatever reason - materialize by the expiration of the respective term of the premium, the credit relationship shall be
continued with a variable debit interest rate that applies to credit relationships in the event of failure to reach an agreement on the
conditions (hereinafter referred to as the “Non-Agreement Interest Rate”). The variable Non-Agreement Interest Rate published
for that point in time under- www.LBBW.de/3-M-EURIBOR shall apply; the Non-Agreement Interest Rate is currently 2.087%. The Borrower
shall be entitled to terminate the credit effective immediately within six weeks (from conversion to the Non-Agreement Interest Rate).
The statutory and other contractual termination rights of the Borrower (for example, no. 17 (5) of the Bank’s General Business
Terms and Conditions) shall remain unaffected.

     

    The adjustment
    of the variable Non-Agreement Interest Rate shall be oriented to a change of the following reference interest rate: 3-month EURIBOR.
    The principles of the debit interest rate adjustment presented above concerning the variable debit interest rate shall exclusively
    apply.

     

	Debit
    interest rate for overdrafts in euro (drawdowns that exceed the maximum amount)

    Interest
    calculation method (for drawdowns up to the maximum amount, as well as overdrafts)
	 	The debit
    interest rate for overdrafts shall correspond to the respective debit interest rate for credit drawdowns (drawdowns up to the maximum
    amount).

    The Borrower
    promises to immediately settle the overdraft.

     

    The interest
    calculation shall be carried out based on a year of 360 days, but in a manner that takes into account the exact number of calendar
    days (actual/360).

	 	 	 
	Interest
    payments	 	Interest
    for drawdowns as an overdraft facility shall be invoiced in arrears on the last calendar day of each month.

 

2.2
Guarantee credit concerning the assumption of suretyships and guaranties - hereinafter referred to as uniformly as “Liability Assurance”
-

 

	Guarantee
    commission	 	Until
    further notice 2.00% p.a. on the respective drawdown
	 	 	 
	Calculation
    method for the guarantee commission	 	The
    guarantee commission is calculated based on a year of 360 days, but in a manner that takes into account the exact number of calendar
    days (actual/360).
	 	 	 
	Due
    date of the commission payments	 	Guarantee
    commissions for Liability Assurances shall be due in arrears on the last calendar day of each month.
	 	 	 
	Drafting;
    direct/indirect Liability Assurance	 	The
    Bank shall formulate or cause to be formulated the text for the Liability Assurance in typical bank form. If the text is prescribed
    by the Borrower or a third party, the content and ambiguities shall be interpreted against the Borrower; the Bank reserves the right
    to reject any text submitted by the Borrower for the Liability Assurance and modify it in coordination with the Borrower.

 

    Page 2 of 9

    

    

 

	 	 	If
    it is intended that the Bank assume a suretyship payable upon first demand or a guaranty, this must be expressly pointed out by the
    principal. However, the Bank is not obligated to assume suretyships payable upon first demand or guaranties.
	 	 	 
	Continued
    existence of Liability Assurances after the end of the contract / termination	 	The
    provisions of this contract shall continue to apply to the Liability Assurances already assumed at the time of the termination or
    end of this framework credit contract. However, the Bank can - without prejudice to the release claim under § 775 BGB [Bürgerliches
    Gesetzbuch (Civil Code)] - demand from the Borrower release from such Liability Assurances.

 

2.3
Letters of credit

 

The conditions
(in particular, commissions, fees) - including the due dates - shall be separately agreed upon prior to acceptance of the respective
individual order. Unless already regulated in this framework credit contract, the other terms and conditions for the assumption of the
letter of credit shall likewise be separately agreed upon (in particular, in the order opening a letter of credit).

 

The provisions
of this framework credit contract shall continue to apply to the letters of credit already assumed at the time of the termination or
end of this framework credit contract. However, the Bank can demand from the Borrower that it be released from such Liability Assurances.

 

		2.4	Banking
                                            business day for purposes of the review and adjustment of the debit interest rate

 

For purposes
of the review and adjustment of the debit interest rate, a banking business day is each day on which TARGET2 is available for the processing
of payments in euro. TARGET2 is the real-time gross payment system through which payments in euro are processed between banks;

TARGET means
Trans-European Automated Real-time Gross Settlement Express Transfers.

 

		2.5	Impairments
                                            / End of an applicable reference interest rate

 

Based on
the reform process concerning reference interest rates in all major currency regions, as well as the additional regulatory developments
with respect to reference interest rates, changes can occur in the case of IBOR reference interest rates and, it is anticipated, EURIBOR
as well. This can result in an applicable reference interest rates already no longer being available or - as in the case of EURIBOR -
permanently no longer available starting at the end of 2021.

 

If the conditions
for individual drawdowns or drawdown possibilities are tied to a reference interest rate, the following shall apply in the case of impairments
/ end of an applicable interest rate:

 

If an applicable
reference interest rate can temporarily or permanently no longer be determined or if use of an applicable is no longer permitted, the
credit is to be based on a comparable replacement reference value - taking into account the contractual and pertinent statutory provisions
(particularly the regulatory requirements imposed on the reference value).

 

If, at the
point in time presented above, a deviating interest rate level exists between the previously applicable reference interest rate and the
replacement reference value, the relevant difference (“spread”) shall be compensated (“spread compensation”).

 

The Bank
shall agree with the Borrower in a timely manner on a contractual adjustment concerning the replacement reference value and the difference
that has to be reconciled (“spread compensation”) between the previously applicable reference interest rate and the replacement
reference value or - to the extent legally suitable - merely communicate to the Borrower the replacement reference value and the difference
that has to be compensated (“spread compensation”) between the previously applicable reference interest rate and the replacement
reference value.

 

The contractually
agreed upon content of the provisions concerning the adjustment of the debit interest rate or, as the case may be, the requirements of
the affected drawdown possibility shall remain unaffected.

 

If a comparable
replacement reference value is not determinable or if continuation of the relevant drawdown or drawdown possibility with the replacement
reference value constitutes an imposition upon the Borrower or the Bank, the Borrower or the Bank shall be entitled to terminate the
framework credit contract with respect to the affected drawdown or drawdown possibility for good cause without compliance with a termination
notice period - which, however, shall not have effect with respect to any running fixed-interest period. However, the legitimate concerns
of the other contracting party must be taken into account.

 

2401903
02/20 Type 1108

 

    Page 3 of 9

    

    

 

		2.6	Commitment commission

 

1.00% p.a.

 

The commitment commission shall be charged on the unutilized framework
credit amount. The calculation shall be carried out according to the calculation method agreed upon for the debit interest rate for drawdowns
as an overdraft facility and shall begin on the date on which the credit relationship comes into existence between the Borrower and the
Bank in a binding manner. It shall be invoiced together with the interest.

 

		3.	Term / Termination

 

		3.1	The framework credit shall have a term through 12/31/2023.

 

The maximum amount shall be reduced - as presented in section
1 - to EUR 10,000,000.00 starting from 3/1/2021.

 

The term of the respective individual drawdown shall, in
principle, be limited by the term of the framework credit. Exceptions shall require coordination in the individual case.

 

		3.2	The Borrower and the Bank can terminate the framework credit, as well as the individual drawdowns - even to the extent not, or not
fully, disbursed - at any time without notice, if good cause is present, as a result of which continuation of the business relationship
would constitute an imposition upon the terminating party. However, the legitimate concerns of the other contracting party must be taken
into account.

 

For the Bank, such ground for termination shall specifically
exist - without prejudice to its right to terminate for other good cause - if

 

		a)	the Borrower (or party with entitlement to utilize the credit), a co-obligor, or a collateral provider has failed to meet a substantial
obligation arising from or in connection with this framework credit contract, the individual drawdowns or - if applicable - the separate
collateral contracts, particularly if the Borrower, a party with entitlement to utilize the credit, a co-obligor, or a personally liable
collateral provider fails to meet his/its obligations to disclose the economic circumstances;
	 	 	 

		b)	the Borrower (or party with entitlement to utilize the credit) or a co-obligor becomes delinquent with respect to payments that are
due arising from this framework credit contract, or arising from individual drawdowns, for longer than 14 days and does not pay even after
the setting of a remedial deadline of at least at additional 14 days;
	 	 	 

		c)	access to substantial portions of the sizable assets of the Borrower (or party with entitlement to utilize the credit), a co-obligor
or a personally liable collateral provider is rendered difficult, for example, by means of measures under corporate transformation law
or relocation of the domicile outside of the country;
	 	 	 

		d)	a substantial deterioration or substantial endangerment of the asset situation of a Borrower, a party with entitlement to utilize
the credit, or a co-obligor, or substantial deterioration or substantial endangerment with respect to the recoverable value of the collateral
furnished for this framework credit, occurs or is threatened, and, as a result, compliance with the payment obligations of the Borrower
(or party with entitlement to utilize the credit) or a co-obligor or the enforceability of the Bank’s claims - including with the
realization of any collateral that exists - is endangered;
	 	 	 

		e)	the Borrower (or party with entitlement to utilize the credit) or a co-obligor petitions for the opening of an insolvency proceeding
concerning his/its assets, or an insolvency proceeding is opened concerning the assets of the Borrower (or party with entitlement to utilize
the credit) or a co-obligor, or the opening of an insolvency proceeding concerning his/its assets is denied due to a lack of assets;
	 	 	 

		f)	levy of execution is initiated against the Borrower (or party with entitlement to utilize the credit) or a co-obligor and is not lifted
within 14 days;
	 	 	 

		g)	the Borrower, a party with entitlement to utilize the credit, a co-obligor, or a collateral provider has made incorrect statements
on a substantial point in connection with the framework credit contract (particularly concerning his/its asset situation) or a collateral
contract.

 

If the good cause consists of the breach of the duty arising
from the framework credit contract or collateral contract, termination shall only be permissible after the unsuccessful expiration of
a time period designated for remedial action or after unsuccessful warning. A different result shall only apply if the Borrower (or party
with entitlement to utilize the credit), a co-obligor, or a collateral provider earnestly and definitively refuses to perform, if the
Borrower (or party with entitlement to utilize the credit), a co-obligor, or a collateral provider does not effect performance on a contractually
designated date or within a designated time period in spite of the fact that the Bank has contractually tied the continued existence of
its interest in performance to the timeliness of performance, or if particular circumstances exist that, upon the weighing of both parties’
interests, justify immediate termination.

 

In the case of joint and several obligors, the provisions
concerning termination for good cause shall apply even if one of the aforementioned events occurs with respect to only one joint and several
obligor.

 

If the Bank demands repayment of the credit under the foregoing
conditions, it shall have a claim for compensation of the damage it incurs as a result.

 

		3.3	The terms and conditions of this framework credit contract shall also continue to apply - even after it has ended - to still existing
individual drawdowns and Liability Assurances until they are fully fulfilled.

 

2401903 02/20 Type 1108

 

    Page 4 of 9

    

    

 

		4.	Collateral

 

The framework credit cannot be utilized until the collateral listed
below is/has been created for the Bank in a legally valid manner - without prejudice to the liability of already existing or other future
collateral within the framework of its security purpose - and all of the other requirements for utilization are met:

 

First-position land charge in favor of Landesbank Baden-Württemberg
for a total of EUR 3,500,000.00 on the property at Dresdner Tor 1, 01723 Wilsdruff, in accordance with separate declaration of purpose.

 

Land charge in favor of Landesbank Baden-Württemberg for a total
of EUR 4,000,000.00 on the property at Heinrich-Hertz-Str. 1, 72622 Nürtingen, in accordance with separate declaration of purpose.

 

First-position land charge in favor of Landesbank Baden-Württemberg
for a total of EUR 2,000,000.00 on the property at Heinrich-Hertz-Str. 1, 72622 Nürtingen, in accordance with separate declaration
of purpose.

 

Comfort letter from Robert Bosch GmbH, Junkerstr. 20-24, 73249 Wernau,
for the total credit framework of EUR 15,000,000.00.

 

Location-specific security assignment of warehouse (goods transferred
as security, Dresdner Tor 1, 01723 Wilsdruff) according to separate contract.

 

Location-specific security assignment of warehouse (goods transferred
as security, Heinrich-Hertz-Str. 1, 72622 Nürtingen) according to separate contract.

 

Location-specific security assignment of warehouse (goods transferred
as security, Hühndorfer Höhe 2+15, 01723 Wilsdruff) according to separate contract.

 

Location-specific security assignment of warehouse (goods transferred
as security, Nürtinger Str. 25, 73257 Köngen) according to separate contract.

 

Location-specific security assignment of warehouse (goods transferred
as security, Potthoffstr. 7, 01159) according to separate contract.

 

Location-specific security assignment of warehouse (goods transferred
as security, Schwabacher Str. 1-5, 01665 Klipphausen) according to separate contract.

 

Suretyships:

 

from ads-tec Holding GmbH, Heinrich-Hertz-Str. 1, 72622 Nürtingen,
originally for EUR 40,050,000.00

 

from ads-tec Industrial IT GmbH, Heinrich-Hertz-Str. 1, 72622 Nürtingen,
for EUR 15,000,000.00

 

in accordance with separate suretyship declarations.

 

Assignment of accounts receivable (accounts receivable A - Z) in accordance
with separate assignment contract.

 

The scope of collateral is apparent from the separate collateral contracts.

 

The Bank can demand that the Borrower create or increase collateral
for the Borrower’s obligations if, and to the extent that, an increase of the risk arises as a result of circumstances that subsequently
occur or become known, for example, as a result of a deterioration or threatened deterioration of the economic situation of the Borrower,
a party with entitlement to utilize the credit, a co-obligor, or a surety or a deterioration of threatened deterioration of the value
of existing collateral. This shall not apply if , at the time of the establishment of the obligation, the Bank should already have recognized
the circumstances that subsequently occurred or became known.

 

Independently of foregoing provisions, separate security for the individual
letter of credit shall take place in the respective order opening a letter of credit.

 

2401903 02/20 Type 1108

 

    Page 5 of 9

    

    

 

		5.	Miscellaneous agreements

 

Offset by the Borrower

 

The Borrower may only offset its claims against claims of the Bank
arising from this framework credit contract or the individual drawdowns to the extent that the Borrower’s claims are undisputed
or established by final judgment.

 

Statutory prohibitions against offset shall remain unaffected.

 

Building insurance

 

The Borrower promises to maintain value-appropriate building insurance
for the encumbered property/properties in accordance with the separate declaration(s) of purpose for land charges or - if it is not itself
the owner of the encumbered property/properties - ensure that value-appropriate building insurance exists.

 

Right of termination on the part of the Bank in the event of change
of control

 

The basis for the grant of the credit is the fact that ads-tec Holding
GmbH has a direct or indirect majority interest in the Borrower and that said equity interest remains in existence.

 

The Bank shall have a right of extraordinary termination - without
prejudice to the right of extraordinary termination for other good cause (for example, no. 26 (2) of the Bank’s General Business
Terms and Conditions) - if ads-tec Holding GmbH sells its direct or indirect equity interest(s) to third parties in whole or in part or
encumbers or otherwise disposes of such equity interest(s) and/or the if voting rights change in such a manner that the aforementioned
requirements for the granting of the credit are no longer met after the disposition or change takes effect. Third parties in this sense
shall not include a current shareholder / a person from the family / heirs of a current shareholder by way of statutory, testamentary
or inter vivos succession / spouses or registered domestic partners of a current shareholder / a family foundation of the shareholder
family or of one or more shareholders.

 

The Bank shall not be deemed to waive its rights under this
agreement as a result of the fact that it does not, or does not promptly, assert them in individual cases or on a repeated basis.

 

Additional terms and conditions:

 

According to our email dated April 22, 2020, the credit is made available
under the following terms and conditions:

 

	●	Submission
                                            of the definitive SMP expert opinion in a version whose content matches the last preliminary
                                            version dated April 7, 2020. We have in the interim received the final SMP turnaround concept
                                            dated 4/17/2020, along with status update on the turnaround concept dated 10/19/2020.
	 	 

	●	Full
                                            commitment of management and the shareholders to consistent implementation of the milestones
                                            defined in the aforementioned concept for market introduction and industrialization of the
                                            products, as well as the further development of ads-tec Energy GmbH.
	 	 

	●	Written
                                            proof by Robert Bosch GmbH that these promised new subordinated loans for a total of EUR
                                            10 million have been contributed or will be contributed in accordance with the aforementioned
                                            concept (received in the interim).
	 	 

	●	Extension
                                            of the interest deferment on the existing shareholder loans through 12/31/2023.
	 	 

	●	Submission
                                            of monthly reporting, including the milestones for product introduction and industrialization
                                            of the CBX, as well as the scaling of distribution, mentioned in the expert opinion.
	 	 

	●	Additional
                                            security for the overall obligation of ads-tec Energy GmbH by means of the expansion of the
                                            purpose of collateral declarations of the land charges recorded in our favor against the
                                            properties in Nürtingen and Wilsdruff (has taken place in the interim).
	 	 

		●	In
                                            the event of plan deviations in relation to the aforementioned concept, the renewed enlistment
                                            of a company consulting company will be necessary.

 

2401903 02/20 Type 1108

 

    Page 6 of 9

    

    

 

		6.	Disclosure
                                            of the economic situation

 

The
Borrower is obligated at all times to provide the Bank with all requested information on its economic situation and make all necessary
documents available, in order that the Bank is able to obtain a clear real-time picture of its economic situation and meet the banking
supervisory authority requirements.

 

During
the term of the framework credit or individual drawdowns, the Borrower shall regularly submit to the Bank the relevant documents, signed
and dated in each case. In the case of borrowers that prepare a balance sheet, this involves, in particular, the audited or confirmed
annual financial statements, along with notes and management report, as well as the consolidated financial statements, each with the
appurtenant business and/or audit reports, and in the case of borrowers that do not prepare a balance sheet, this involves, in particular,
the income and asset list, including all liabilities, statement of revenues and expenditures (profit statement), and copies of the tax
notices and tax returns.

 

If
submission of the documents is not possible within twelve months after the end of the fiscal year or, as the case may be, calendar year,
the Borrower shall initially submit the documents in preliminary form (for example, preliminary annual financial statements, tax return).

 

The
Bank shall be entitled to declare extraordinary termination of the credit relationship if the Borrower does not meet its obligation to
disclose economic circumstances. However, the Bank shall take the legitimate concerns of the Borrower into account.

 

		7.	Notification,
                                            review, information

 

		7.1	The
                                            Borrower shall promptly inform the Bank of all changes in the facts essential to the framework
                                            credit contract, such as changes

 

-
of name,

 

-
of address,

 

-
of the representative authority or powers of disposition that have been disclosed to the Bank; the representative authority or powers
of disposition disclosed to the Bank shall apply until receipt of a change notification from the Borrower, unless the Bank is aware of
the change or is unaware of it as a consequence of negligence.

 

The
duty to notify shall exist even if the facts are registered or published in public registers.

 

The
Borrower shall also be required to notify the Bank of legal or economic events that are capable of having a detrimental effect on the
credit relationship (for example, changes in the corporate situation; measures to the objects that serve as collateral; threat of product
or environmental liability). The Borrower shall at all times provide the Bank with all requested information and make available at documents
that are necessary to the review of the agreed upon collateral.

 

		7.2	If
                                            an appropriate ground exists, the Bank shall be entitled to examine public registers, land
                                            registers, and land files and request simple or certified copies and extracts at the Borrower’s
                                            expense. In addition, it can obtain information from insurance companies, governmental authorities,
                                            and other entities, particularly credit institutions, that it deems necessary to the evaluation
                                            of the credit relationship.

 

Employees
and agents of the Bank are entitled to inspect the properties that serve as collateral.

 

2401903 02/20 Type 1108

 

    Page 7 of 9

    

    

 

		8.	Value-added
                                            tax

 

If
the Borrower is an Unternehmer [statutory “business owner”] and takes out the credit for its enterprise, the Bank
shall be entitled to invoice the applicable statutory value-added tax for interest, fees, and commissions arising from this contract.
If no value-added tax is invoiced, it is a VAT-free financial transaction. For purposes of invoicing, the Bank points out that - unless
shown otherwise or elsewhere - the invoice number is the account number. If no other time of performance or performance period is stated,
the invoice date corresponds to the performance date.

 

		9.	Costs
                                            of the credit contract

 

The
Borrower shall bear the costs incurred in connection with the creation of collateral. The reimbursement of the Bank’s expenditures
shall be oriented to the statutory provisions.

 

		10.	Legal
                                            validity

 

If
agreements that are concluded in the framework credit contract or in individual drawdowns are legally invalid in whole or in part, it
is intended that the other agreements nevertheless remain valid.

 

		11.	Direct
                                            debit agreement

 

The
Bank is entitled to debit interest, principal payments, commissions, and expense reimbursement claims, as well as all other contractual
payments the Borrower is required to make, from a current euro account of the Borrower at the Bank.

 

		12.	Substantial
                                            components of this framework credit contract are, according to the attached appendices

 

		-	Terms
                                            and Conditions for the Guarantee Business

 

		13.	Acceptance
                                            of a contractual offer

 

This
contractual offer can be accepted through 1/22/2021 (receipt by the Bank).

 

		14.	Information
                                            concerning the beneficial owner / Statutory cooperation duties of the Borrower(s)/party or
                                            parties entitled to utilize the credit

 

14.1
Information concerning the beneficial owner

 

The
Borrower(s)/party or parties entitled to utilize the credit is/are acting in its/their own economic interest, not at the behest of a
third party (particularly a trustor).

 

If
the Borrower(s)/party or parties entitled to utilize the credit is/are acting not in its/their own economic interest, but rather
at the behest of a third party (particularly a trustor), differing beneficial owners must be listed (last name, first name(s),
date of birth, place of birth, citizenship, address, taxpayer/business identification number*):

 

		*	Domestic
taxpayers: Taxpayer ID in the case of natural persons, business ID in the case of other domestic taxpayers (if a business ID has not
yet been issued, the taxpayer number applicable to the income)

 

14.2
Statutory cooperation duties of the borrower(s)/party or parties entitled to utilize the credit

 

The
Borrower(s)/party or parties entitled to utilize the credit is/are obligated to promptly notify the Bank of any changes to the statements
made to the Bank that arise in the course of the business relationship.

 

2401903 02/20 Type 1108

 

    Page 8 of 9

    

    

 

		15.	Applicable
                                            law (choice of law); place of performance, place of jurisdiction

 

		15.1	German
                                            law shall be applicable to the conclusion of the contract and this contract, unless this
                                            is precluded by mandatory statutory provisions.

 

		15.2	The
                                            place of performance for the Bank and the Borrower is Stuttgart.

 

		15.3	If
                                            the place of jurisdiction is not determined by encumbered real property and the jurisdiction
                                            of the Bank’s general place of jurisdiction does not already arise from § 29 ZPO
                                            [Zivilprozessordnung (Code of Civil Procedure)], the Bank can pursue its claims at
                                            its general place of jurisdiction and can only be sued at said place of jurisdiction, if
                                            the contracting party, against which legal action is being taken, is a Kaufmann [statutory
                                            “businessperson”] or a legal entity.

 

	Stuttgart, 1/4/2021	Landesbank Baden-Württemberg	 
	 	 	 	 	 
	 	/s/ Carmen Herdter	 	/s/ Daniela Klingler	 
	 	Carmen Herdter	 	Daniela Klingler	 
	 	 	 	 	 
	Nürtingen, 2/5/2021	/s/ Thomas Speidel	 	/s/ Robert Vogt	 
	Place, date	ads-tec Energy GmbH	 	 	 

 

Note:
Each borrower / party entitled to utilize the credit / co-obligor receives a copy of the credit contract.

 

	Legitimation
    review in accordance with the Abgabenordnung [Tax Code]/Identification in accordance with the Geldwäschegesetz
    [Money Laundering Act]
	Last
    name, first name(s), date of birth, place of birth, citizenship, address, taxpayer/business identification number*; legitimation
    (ID type, ID number, issued by)
	 

     

     

	Information
    reviewed and certifying the correctness of the signatures:on:

 

		*	Domestic
taxpayers: Taxpayer ID in the case of natural persons, business ID in the case of other domestic taxpayers (if a business ID has not
yet been issued, the taxpayer number applicable to the income)

 

2401903 02/20 Type 1108

 

    Page 9 of 9

    

    

 

		Landesbank
    Baden-Württemberg

    Am
    Hauptbahnhof 2

    70173
    Stuttgart

    Taxpayer
    no. 2899/014/09009 VAT ID no. DE 147 800 343

 

Terms
and Conditions for the Guarantee Business

 

June
2018 version

 

The
Bank assumes suretyships and guaranties on behalf of clients in document form or in the form of an electronic liability declaration -
hereinafter referred to uniformly as the Liability Assurance - under the following terms and conditions:

 

1.
Direct/Indirect Liability Assurance, drafting

 

At
the client’s election, the Bank can issue the Liability Assurance in the form of a document or in the form of an electronic Liability
Assurance. The Bank issues Liability Insurances in the form of a document to the client in paper form. The Bank transmits Liability Assurances
in the form of an electronic liability declaration to the client by means of placement into the client’s electronic mailbox.

 

The
Liability Assurance in document form can be created by the Bank itself (direct Liability Assurance) or through a different credit institution
(second bank). Liability Assurances in the form of an electronic liability declaration are only created by the Bank itself.

 

If
the Bank or second bank follows instructions of the principal in drafting the document or the electronic liability declaration concerning
the assumption of the Liability Assurance, it has no obligation to the principal to review or inform.

 

Liability
Assurances in the form of a suretyship document or an electronic liability declaration are assumed by the Bank on a directly enforceable
basis under waiver of the defenses of voidability and offset.

 

2.
Guarantee account/Guarantee commission

 

Upon
handover/dispatch of the document or dispatch of the order to the second bank to create a Liability Assurance or as a result of the placement
of the electronic liability declaration into the principal’s electronic mailbox, the principal’s guarantee account is debited
with the promised amount. From that point on, the principal is charged a guarantee commission on the debited amount until deletion. In
the event of later utilization, the guarantee commission must be retroactively remitted until payment is made.

 

3.
Return of the document, release from liability

 

After
the end/handling of the Liability Assurance, the principal shall be required to ensure the return of the document or, alternatively,
the release of the Bank from liability. In the case of an electronic liability declaration, the principal shall be required to ensure
the delivery of a liability release declaration by the beneficiary to the Bank.

 

4.
Deletion

 

In
the case of direct Liability Assurances, for which an expiration date is designated in the document or electronic liability declaration,
the Bank shall delete the debit from the guarantee account after the end of the expiration date if the following requirements are met:

 

	-	the
                                            Liability Assurance expires according to its unambiguous wording if, prior to the end of
                                            the expiration date, no utilization takes place and
	 	 

	-	the
                                            Liability Assurance is governed by German law and
	 	 

	-	a
                                            claim has not been asserted against the Bank in a timely manner.

 

If
the beneficiary asserts a claim against the Bank arising from the Liability Assurance based on foreign law in such case after the end
of the expiration date, the Bank shall only pay if there is a payment authorization from the principal or an enforceable decision ordering
payment.

 

In
the other cases, the Bank shall delete the amount of the Liability Assurance in the guarantee account, if it has received back the document
issued concerning the Liability Assurance or has been unambiguously released from liability by the beneficiary or, as the case may be,
the second bank. If the subject matter of the Liability Assurance is a litigation guarantee, in the case of which the beneficiary’s
consent is required to return the document, the Bank does not have to delete the debited amount until upon proof of such consent is provided.

 

2401903 02/20 Type 1108

 

    Page 1 of 2

    

    

 

5.
Review of documents

 

If
the Bank has to receive documents/declarations in connection with the Liability Assurance, it shall exercise the care of a reasonable
and prudent businessperson in reviewing whether they conform to the external form according to the terms and conditions for utilization
of the Liability Assurance.

 

The
Bank shall not bear any further review obligations, particularly with respect to the authenticity and genuineness, formal correctness,
completeness, or legal validity of the documents/declarations or the general or specific terms and conditions contained in them or with
respect to the correctness of translations included with delivery.

 

Declarations
are also to be viewed as proper if they have been transmitted via fax, email, telex, or other communications methods.

 

6.
Reimbursement of expenditures

 

The
reimbursement of the Bank’s expenditures shall be oriented to the statutory provisions.

 

If
the Bank is not able to debit the expenditures to a current account within the framework of a balance or line of credit, then the interest,
fees, and commissions generally charged by the Bank for tolerated account overdrafts must be paid.

 

7.
Collateral

 

The
Bank’s lien secures its claims arising from issued orders to assume Liability Assurances starting from the point in time of the
Liability Assurance.

 

In
accordance with the provision concluded in no. 22 AGB [Standard Business Terms and Conditions], the principal is obligated, upon request,
to provide the Bank with bank collateral or cash collateral or increase existing collateral if a change in the risk situation arises
as a result of circumstances that subsequently occur or become known.

 

Without
prejudice to other security, all claims that accrue to the principal against the beneficiary in connection with the utilization of the
Liability Assurance are assigned to the Bank to secure the Bank’s expenditure reimbursement claim. The Bank shall undertake the
re-assignment of the claims as soon as it has been satisfied with respect to all of its claims against principal.

 

8.
Place of jurisdiction

 

If
the principal is a Kaufmann [statutory “businessperson”], a public entity, or a special public fund, the Bank can
sue at its general place of jurisdiction and can only be sued at that place of jurisdiction.

 

191 905.000 SoF - June 2018 version

© DSV Copyright-protected

 

Page 2   of 2

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