Exhibit 10.8


 


Shenzhen House Lease Contract


 


 


 


 


 


 


Prepared by Shenzhen Housing Rental Management
Office


 




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Housing Lease Registration Notice


 


1. The material to be submitted for the
registration of the housing lease:


(I) Real estate rights certificate or other
valid documents proving its property rights (right to use) (providing the original and keeping a copy)


(II) The identity certificate of the lessor
or lessee or legal qualification certificate, including:


1. Individual


Mainland residents: ID card or other valid
identification.


Hong Kong, Macao and Taiwan residents:
Mainland Travel Permit for Hong Kong and Macao Residents, Mainland travel permit for Taiwan residents


Foreigners: Passport (with residence permit
or entry visa).


The above documents must be provided with
the original and keep the photocopy.


2. Unit


Business license (social credit code),
military documents, and legal opening certificate of overseas enterprises (providing the original and keeping a copy). The legal
opening certificate of overseas enterprises shall be accompanied by a Chinese translation, which should be notarized or certified
by the embassy or consulate if it has not been certified by the relevant functional departments in China.


Original certificate of the legal representative.


(3) If the shared house is rented, all
the co-owners shall be required to agree to the proof of the lease.


(IV) Authorization


1. Individual's property right: a valid
identity document (checking the original and retaining a copy) and an original power of attorney shall be issued by a principal
and an entrusted agent. The principal shall specify the matters entrusted and the place of signature in the power of attorney.
If the original identity certificate of the principal cannot be obtained, a copy of the identity card signed by the principal shall
be presented. The power of attorney signed by the party involved abroad shall be notarized and certified as required.


2. Unit's property rights: The agent who
is not a representative or the person in charge shall also issue an original power of attorney of the legal representative or the
person in charge. The principal shall present the entrusted matters and the place of signature in the power of attorney. The power
of attorney signed by the party involved abroad shall be notarized and certified as required.


(V) House lease contract.








 






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House Lease Contract


 


Lessor (Party A): Shenzhen Science
& Industrial Park Group Co., Ltd. 


Type of ID: □Residential ID □Passport
√Uniform Social Credit Code □Other


ID number: 914403001921796142 


House Information Code Card:


Address: 12/F, Building 1, Financial
Base, No. 8 Kefa Road, Nanshan District, Shenzhen


Tel:                                                        


Entrusted agent: Siyi Wang


Type of ID: □Residential ID □Passport
□Uniform Social Credit Code □Other


ID number:                                                        


Address:                                                        


Tel:                                                        


 


Lessee (Party B): Shenzhen CDT Environmental
Technology Co., Ltd.


Type of ID: □Residential ID □Passport
□Uniform Social Credit Code □Other


ID number:                                                        


Address:                                                        


Tel:0735-86567299


Entrusted agent:                                                       


Tel: 13480765015


 


In accordance with the "Contract Law
of People's Republic of China", "Administrative Measures on Commercial Housing Lease" and "Decision of the
Standing Committee of the Shenzhen Municipal People's Congress on Strengthening the Safety Responsibility of House Leasing",
this contract is concluded by consensus between Party A and Party B.


Article 1Basic Information
of the Property


1.1 Party A shall lease the property (hereinafter
referred to as the leased house) of Unit 4B of Financial Service Technology Innovation Base No. 8 Kefa Road, Nanshan District,
Shenzhen to Party B for use.


The leased house has a total area of 348.00
square meters (Usable area:     /     square meters, common area:    /   square meters). Use of leased houses:
factory buildings. House Information Code: 4403050070080700042000005.


1.2 Ownership of the Property:


Property owner or legal user is Shenzhen
Science & Industrial Park Group Co., Ltd. Party A holds (√Real estate rights certificate or other valid documents
proving its property rights/□Property Sales Agreement/□Property Rental Agreement/□Other). Name and number
of real estate rights certificate or other valid documents proving its property rights (right to use): SFDZi No.4000602411.
This property (√is/□is not) under mortgage.


1.3 Interior decoration of the property    /     


1.4 Accessary infrastructure:


□ No accessory infrastructure installed,
is an empty property.


□ Accessory infrastructure installed,
details please refer to Appendix III.




 






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Article 2Leasing Terms


2.1 The term of Party B renting a leased
house shall be from September 1, 2020 to August 31, 2022, collectively 2 years    / months.
(The term stipulated in the preceding paragraph shall not exceed the approved land use period. The term of a single leasing agreement
shall not be less than 1 year.)


2.2 Rent free period:


√Party B is entitled to a rent-free
period (included in the lease term) of 1 month and the specific time is from September 1, 2020 to September 30,
2020. During this period, Party B does not need to pay the rent to Party A, but must bear all costs for water, electricity,
gas, and property management fees other than the rent. When the rent-free period expires, regardless of whether Party B uses the
leased house or not, it shall pay the rent in accordance with the contract.


□Party B does not enjoy the benefits
of a rent free period. The accounting of the rental fee, management fee and other fees starts at the delivery of the property from
Party A.


 


Article 3Rental Fee


3.1 The unit rent of the leased house is
calculated based on the rented area of the house, and the total monthly rent is RMB 36,192 (in words: RMB Thirty-six
thousand one hundred and ninety two).


3.2 Time of payment: monthly payment, Party
B shall pay the rental fee to Party A Before the 10th of each month. Party A shall issue a receipt of payment to Party B
when collecting the rent.


3.3 Payment method: Party B shall make
the payment of the agreed rental fee via □cash/ √wire/□other    /     to Party A


When making the payment via wire, Party
B shall wire the money to the designated bank account of Party A below:


Name of Beneficiary: Shenzhen Science
& Industrial Park Group Co., Ltd.


Bank: China Citic Bank Shenzhen Fuqiang
Branch


Account Number: 8110 3010 1320 0226
468


3.4 During the term of lease, Party A shall
not increase the rental fee without the other party’s consent.


3.5 The two parties agree that the rent
will be □increased/□decreased / % based on the previous year’s rent standard every year starting from
the first year of the lease, as follows:


(1) From / year / month /
day to / year / month / day, the rent standard is RMB/yuan/month (in words: / yuan).


(2) From / year / month /
day to / year / month / day, the rent standard is RMB / yuan /


Month (in words: / yuan).


(3) From / year / month /
day to / year / month / day, the rent standard is RMB / yuan / month (in words: /  yuan).


 


Article 4Deposit


4.1 Within 5 days upon signing this agreement,
Party B shall pay Party A a deposit in the amount of RMB 72384 , in words: RMB Seventy two thousand three hundred and
eighty four, equivalent to the rental fee for 2 months (no longer than 2 months). Party A shall issue a receipt of payment
to Party B when collecting the deposit.


 






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4.2 The deposit paid by Party B is not
the rent or other expenses prepaid by Party B. It is only a guarantee for Party B to fulfill the obligations stipulated in this
contract. Party A shall not detain Party B’s deposit without reason and refuse to return it. Within 5 days after the expiration
of the lease term or the termination of the contract, and when the following conditions are met at the same time, Party A shall,
after deducting the rent, expenses and liquidated damages that Party B shall bear, return the remaining part of the lease deposit
to Party B without interest (if there is a rent balance, it will be returned):


(1) Party B has not caused damage to the
leased house or repaired the damaged house;


(2) Party B shall return the leased house
(including ancillary facilities) to Party A in the manner agreed in this contract;


(3) If Party B uses the address of the
leased house for industrial and commercial registration, it has moved the industrial and commercial registration address and has
completed other procedures required by law and the government.


 


Article 5Other Fees


5.1 During the lease period, Party A shall
be responsible for paying the use fee of the land used for the leased house and the tax arising from the house lease.


5.2 Party B shall pay the water and electricity
fee, sanitation fee, house (building) property management fee for the leased house, / fees and other expenses incurred due
to the use of leased house.


5.3 Party B shall pay the fees in time
as required after receiving the notice of payment or the evidence of fees provided by Party A, otherwise the resulting late fees,
liquidated damages and related legal consequences shall be borne by Party B.


 


Article 6 Delivery and acceptance of
property


6. 1 Party A shall deliver the leased house
to Party B before October 1, 2020, and ensure that the house and its auxiliary facilities are safe and qualified (including
air quality).


6.2 Party B shall inspect the existing
equipment and facilities of the leased house when Party A delivers the leased house, and both parties shall sign the "Confirmation
of House Delivery" (see Annex III) to complete the delivery.


6. 3 Special confirmation by both parties:
If Party B has not signed the "Confirmation of House Delivery" but Party B has entered the site for decoration, it shall
be deemed that the delivery of the leased house has been completed.





 


The use of the leased
house herein shall be consistent with that in the real estate rights certificate, and the use may be arbitrarily changed without
the approval of the relevant department.


Article 7Decoration


7.1 √On the premise of not affecting
the structure of the house, Party A agrees to Party B to decorate the leased house; if it needs to be reported to the relevant
department for approval according to regulations, □Party A/√Party A shall also entrust Party B to report to the relevant
department for approval. After the expiration of the lease term or the termination of the contract, the decorations shall be □removed
by Party B and restored to their original condition/ □discounted and owned by Party A/ √owned by Party A for free/
□Others


 






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□Party A does not agree with Party
B to decorate the leased house.


7. 2 Decoration deposit: In accordance
with the decoration under Article 7.1 of this contract, Party B shall pay a decoration deposit of RMB / yuan (in words:
/ yuan) to Party A or the unit designated by Party A within /  working day before the start of construction. After
the decoration is completed and passed the inspection and acceptance by the fire department, Party A or the unit designated by
Party A shall return the decoration deposit to Party B without interest.


 


Article 8Housing use and
maintenance


8.1 During the lease period, Party B shall
use the leased house and its ancillary facilities in a normal and reasonable manner, use water and electricity safely, and shall
not change the lease purpose without Party A’s consent.


8.2 During the lease period, when Party
B discovers damage or malfunction of the leased house and its auxiliary facilities, it shall promptly notify Party A to repair
it. Party A shall perform repairs within 5 days after receiving Party B’s notice. If it is not possible to notify Party A
or if Party A receives a notice that it will not repair after the expiry date, or if it must be repaired immediately due to an
emergency, Party B has the right to perform repairs on its behalf, and Party A shall bear the cost. If the maintenance of the house
affects the use of Party B, the rent shall be reduced or the lease term shall be extended accordingly.


If Party B deliberately or improperly used
the leased house or ancillary facilities (including Party B’s decoration of the house and added facilities and equipment)
damaged or malfunctioned, Party B shall be responsible for repairs, and Party A shall not be responsible for repairs.


During the lease term, if Party A or Party
B fails to perform the maintenance, maintenance and other obligations stipulated in this contract in a timely manner, causing personal
damage or property loss to the other party or a third party, the responsible party shall be liable for compensation.


 


Article 9


9.1 Sublet


√Party B is not allowed to sublet.


□If the leased house is an industrial
house, and the land supply contract or industrial development supervision agreement related to the leased house permits subletting,
Party A agrees to Party B to sublet according to regulations or agreements, but Party B’s subletting period shall not exceed
the remaining amount agreed in this contract The lease term, and shall be responsible for binding the sub-lessee to perform the
lease obligations, and bear the responsibility for the sub-lessee’s breach of contract, and the sub-lessee shall not sublet
again.


□If the leased house is a house
other than the industrial house, Party A agrees that Party B will sublet the leased house wholly or partly to others, but Party
B’s subletting period shall not exceed the remaining lease period agreed in this contract, and shall be responsible for binding
the sub-tenant to perform Lease obligation, bear responsibility for the breach of contract by the sub-lessee, and the sub-lessee
shall not sublet again.


 






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9.2 Renewal


If the lease term of this contract expires
and Party B needs to continue renting the leased house, it shall submit a written lease renewal application to Party A 30 days
before the expiration of the lease term. If the two parties reach an agreement on the renewal of the lease, they shall re-enter
the lease contract or sign the lease term modification agreement. Under the same conditions, Party B has the priority to renew
the lease.


9.3 Priority


When Party A sells the leased house during
the lease period, it shall notify Party B in advance, and Party B has the first right of purchase under the same conditions of
price and payment method. If Party A sells the whole house including the leased house or the whole house connected with other houses,
Party B does not have the right of first refusal.


 


Article 10 Property Return


10. 1 Within one day from the expiration
of the lease term or the termination of this contract, Party B shall promptly vacate and move out of the leased house, and return
the house and auxiliary facilities to Party A. If Party B fails to empty or move out of the house within the agreed time, and cannot
contact Party B, the parties agree to deal with the following methods:


√Party A has the right to treat all
items left in the leased house as waste.


□Party B provides an emergency contact
person. If the emergency contact person of Party B has not emptied the house within days after receiving the notice, Party A has
the right to treat all items left in the leased house as waste.


□Party A entrusts a third-party
custody company to keep the leftovers on its behalf, and Party B shall bear the cost of custody.


□Party A disposes of the leftovers
by □auction/□sale, and keeps the proceeds on behalf of Party B.


□Other.


10.2 The items left after Party B returns
the house shall be deemed as Party B’s waiver of ownership, and Party A has the right to treat them as waste. Party A has
the right to request Party B to bear the expenses incurred by the disposal of waste left by Party B.


10. 3 When the house is returned, both
parties shall submit the inspection on the use of the house and ancillary items, facilities and equipment, water and electricity,
etc., and sign or seal the "Confirmation of Return of the House" (see Annex IV).


 


Article 11 Termination


11. 1 This contract can be terminated after
mutual agreement by both parties.


11.2 If Party B has one of the following
circumstances, Party A has the right to unilaterally terminate the contract and take back the leased house:


(1) Failure to pay or not pay rent or other
expenses as agreed for 30 days;


(2) On the premise that the leased house
meets the agreed delivery standards, Party B refuses to sign the "Confirmation of House Delivery" without justifiable
reasons;


(3) Unauthorized demolishing and changing
the main structure of the movable house;


(4) Change the purpose of the leased house
without authorization;


(5) Sublet the leased house to a third
party without authorization;


(6) Use rented houses to engage in illegal
activities.


11.3 If Party A has one of the following
circumstances, Party B has the right to unilaterally terminate the contract:


(1) Failure to deliver the leased house
within 7 days according to the agreed time;


 






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(2) Party A has no right to lease the house
or the house delivered does not comply with the contract, which seriously affects the use of Party B or endangers the safety or
health of Party B;


(3) Failure to undertake the agreed maintenance
obligations or non-payment of various expenses that should be borne by Party A caused Party B to be unable to normally use


Use rental housing.


11.4 In any of the following circumstances,
both parties have the right to terminate the contract:


(1)
The leased house has been expropriated, expropriated and demolished due to social public interest or urban construction needs.
[In this case, Party A shall provide reasonable compensation for the losses suffered by Party B due to the unfulfilled contract
(including decoration losses)] ;


(2) Due to force majeure such as earthquakes,
fires, etc., the leased house is damaged or lost or the house is identified as dangerous and cannot be used;


(3) At the time of signing the contract,
Party A has informed Party B that the mortgage has been set before the lease of the house and may be sanctioned during the lease
term, and is now sanctioned.


11. 5 In the case of the above-mentioned
circumstances, this contract shall be terminated when Party A or Party B serves the other party with the "Notice of Cancellation"
(see Appendix 5) in accordance with the 14th treaty of this contract.


 


Article 12 Liability for breach of contract


12. 1 Party A’s liability for breach
of contract


(1) Party A has the circumstances stipulated
in Article 11.3 of this contract. If Party B terminates the contract, Party A shall return the deposit and the balance of rent
collected in advance within 5 days after the termination of the contract, and pay Party B liquidated damages in accordance with
the contract monthly rent amount. If the liquidated damages paid are insufficient to cover the losses of Party B, Party A shall
also be responsible for compensation.


(2) If Party A delivers the house to Party
B overdue or there are circumstances stipulated in Article 11.3 Item 2 and Item 3 of this contract, and Party B does not terminate
the contract, Party A shall pay twice the daily rent amount during the breach of contract. Party B shall pay liquidated damages
(the maximum liquidated damages shall not exceed twice the monthly rent amount).


 






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(3) During the lease period, if Party A
unilaterally terminates the contract without the conditions stipulated in Article 11 of this contract, it shall notify Party B
in writing at least 30 days in advance, refund the deposit and the balance of the rent collected in advance, and pay twice the
contract monthly rent amount Pay liquidated damages to Party B. If the liquidated damages paid are insufficient to cover the losses
of Party B, Party A shall also be liable for expensive compensation.


12.2 Party B's liability for breach of
contract


(1) Party B has the circumstances stipulated
in Article 11.2 of this contract. If Party A terminates the contract, Party B shall pay Party A liquidated damages in accordance
with the standard of the contract monthly rent amount. If the liquidated damages paid are insufficient to cover the losses of Party
A, Party B shall also be responsible for compensation.


(2) If Party B pays rent, deposit or other
expenses overdue, and fails to meet the contract termination conditions or meets the contract termination conditions but Party
A does not terminate the contract, Party B shall pay Party A twice the daily rent amount for every day overdue Liquidated damages.


(3) During the lease period, if Party B
unilaterally terminates the contract without the conditions stipulated in Article 11 of this contract, it shall notify Party A
in writing at least 30 days in advance and pay Party A liquidated damages at twice the contract monthly rent. If the liquidated
damages paid are insufficient to cover the losses of Party A, Party B shall also be responsible for compensation.


(4) When the lease term expires or the
contract is terminated, Party B shall move out and return the house in time. For those who move out or refuse to return after the
deadline, for each day overdue, Party B shall pay Party A a penalty of twice the daily rent.


(5) If Party B renovates, decorates, or
installs facilities and equipment that affect the structure of the leased house without the consent of Party A, it shall restore
the leased house to its original condition and compensate Party A for the losses caused thereby. If the aforementioned actions
of Party B cause personal damage or property loss to Party A or a third party, Party B shall bear all legal liabilities and compensate
for the loss.


 


Article 13 Special Provisions


Party A and Party B responded to the Appendix
7 "Shenzhen Housing Leasing Safety Management Responsibility Letter" (hereinafter referred to as the "Responsibility
Letter") to fully and appropriately perform the safety management responsibilities and obligations stipulated in the "Your
Job Letter". If any party violates the provisions of the "Letter of Responsibility" and causes a safety liability
accident during the lease of the house under this contract or causes personal damage or property loss to others, the responsible
party shall bear all legal liabilities and economic losses.


 


Article 14 Notification and delivery


14.1 Both parties agree to send notifications
via group mail, email, WeChat, and SMS. Both parties confirm that their effective delivery address is as follows:


Party A's delivery address:


√Same as the address on top


□Other addresses □E-mail
□WeChat □Mobile


Party B's delivery address:


√Same as the address on top


□Other addresses □E-mail
□WeChat □Mobile


If there is any change to the above address,
the other party shall be notified in writing, otherwise the above address will still be regarded as a valid address. If a notice
or document from one party to the other party is sent by mail, the date of receipt of the recipient’s reply shall be the
date of service. If the document is returned by mail at the above address, the date of return shall be regarded as the date of
service; by email or WeChat or if it is sent by SMS, the sending date shall be deemed as the delivery date.


14.2 If it cannot be delivered through
the above methods, before Party B withdraws the lease, the notice sent by Party A to the location of the leased house under this
contract shall be deemed to be effectively delivered.


 



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Article 15


15. 1 Disputes arising during the performance
of this contract shall be resolved by both parties through negotiation; if the negotiation fails, the relevant administrative department,
industry association or other third party may be requested to mediate, or:


□Apply to Shenzhen International
Arbitration Court for arbitration.


√File a lawsuit with the people's
court where the leased house is located.


15.2 The clauses related to dispute resolution
of the contract exist independently, and the change, cancellation, termination, invalidity or cancellation of the contract will
not affect its validity.


 


Article 16 Modification


No party shall unilaterally modify the
content of this contract unless the two parties reach an agreement through consultation. Both parties can sign a supplementary
agreement for the change of this contract, which has the same legal effect as this contract.


 


Article 17 Contract signing, registration
and filing


17.1 This contract takes effect from the
date of signing by both parties, in one copy, Party A holds one copy, Party B holds one copy, and the housing leasing management
department holds one copy, with the same legal effect.


17.2 The annex to this contract is a valid
part of the contract and has the same legal effect as this contract.


17.3 Within 10 days after the signing
of this contract, both parties shall go to the housing leasing management department to go through the house leasing registration
and filing procedures in time.







 


Party A (seal and signature): /s/ Shenzhen
Science & Industrial Park Group Co., Ltd.


Legal representative:


Tel:


Bank account:


Entrusted agent (seal and signature)
             August 21, 2020


 


Party B (seal and signature): /s/ Shenzhen
CDT Environmental Technology Co., Ltd.


Legal representative:


Tel:


Bank account:


Entrusted agent (seal and signature): 
           August
21, 2020








 






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(Attached page)








 


 


 


 


 


 


 






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Special Note


 


1. Before signing the contract, both parties
should read the contract carefully. The contents of the contract terms may be added, deleted, selected, supplemented, filled, and
modified after negotiation. After the contract is signed, the unmodified content and the content filled by both parties (confirmed
by signatures or seals of both parties) shall be deemed as the agreed contents of this contract. The selection, supplementation,
filling, and modification of this contract shall give priority to the effectiveness of handwritten items.


2. Before signing the contract, the lessor
shall present the real estate rights certificate or other valid certificate proving the real estate right and proof of the identity
of the lessor or legal qualification to the lessee. If the house is entrusted by others, a power of attorney must be provided;
if the house is rented out by co-owners, proof of consent of all co-owners and letter of authorization must be provided; the lessee
shall present his/her identity certificate or legal qualification certificate to the lessor.


3. The signing and performance of the contract
by both parties shall be carried out in accordance with the law and shall not violate the provisions of relevant legal procedures
or engage in illegal acts.


4. Once this contract is signed, it shall
be legally binding on both parties. Both parties shall perform their obligations in accordance with the agreement of the parties,
and may not change or terminate the contract without authorization or agreement.


5. The contents of the contract filled
out by the parties themselves shall be written with a brush, pen and signature pen using carbon ink or blue-black ink, and confirmed
by signatures or seals.


6. There are blank spaces in the text of
the contract (underlined), which can be agreed by the parties; some provisions can be selected by the parties (marked by □).


7. After signing this contract, both parties
shall timely register or put on record with the competent department of house leasing authority.


8. The parties to the lease may, according
to the actual needs, decide the original number of the contract and carefully check them when signing the contract to ensure that
the contracts are consistent with each other. In any case, both parties shall hold at least one original contract.


9. If the content of this contract is significantly
changed or released, both parties shall go through relevant procedures with the original registration authority in time.


10. Both parties may negotiate how to dispose
of the retained items in the leased house after the lease expires or the contract is terminated, as stipulated in the attached
page.


11. Article 6 herein “Use of Leased
House” shall be filled out as follows: commercial, office, factory, warehouse, comprehensive, and others.








 






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Shenzhen House Leasing Safety Management


 


 


 


 


 


Responsibility Letter


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


Prepared and printed by the Shenzhen Floating
Population and Rental Housing General Management Office








 






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In order to implement the "Decision
of the Standing Committee of the Shenzhen Municipal People's Congress on Strengthening the Safety Responsibility of House Leasing",
further specify the safety responsibility for house leasing, strengthen the safety management of leased house, and safeguard the
safety of people's lives and property, this responsibility statement is formulated in accordance with relevant laws and regulations.


I. The lessor and lessee of the production
and operation houses (including various commodity markets and their stalls and counters), office buildings, residential property
and other houses in the administrative area of this Municipality are the safety responsible persons.


II. The lessor renting the house shall
have the certificate of house ownership or other documents as stipulated by the municipal government. If the house is rent by an
entrusted person, the owner shall sign a written entrustment agreement with the entrusted person to stipulate their respective
safety responsibilities. The house sub-tenant, other persons who have actual rental behaviors and the house lender should bear
the safety responsibility of the lessor.


III. The lessor shall ensure that the buildings
for leasing and their entrances, exits, fire-fighting, gas, electric power facilities, etc. shall comply with the relevant laws
and regulations and the safety standards stipulated by the relevant administrative departments. Where it is required by laws and
regulations to obtain relevant licenses or approval documents before leasing house, the lessor shall obtain such licenses.


IV. If the lessee uses the leased house
for production and operation activities, the lessor shall require the lessee to show the relevant certificate of the fire protection
formalities and the business license for industry and commerce or the business license before starting business.


V. The lessor shall check and make a written
record of the safe use and use nature of the leased house at least once a quarter, and the lessee shall cooperate and sign the
record. If the lessor is unable to check personally due to objective reasons, he/she shall entrust others to check.


VI. The lessor shall report to the Rental
Housing General Management Office or other relevant administrative department when the lessor checks and discovers potential safety
hazards in the leased house and the lessee's changing the use nature of the house without permission.


VII. The lessee shall use the house safely
and reasonably in accordance with the provisions of laws and regulations and the lease contract, and shall not change the structure
and use nature of the house without permission. In case of discovering the potential safety hazard in the leased house, the lessee
shall immediately notify the lessor and report it to the Rental Housing General Management Office or other relevant administrative
departments.


VIII. The lessee shall not change the function
of the leased house without permission, use the house to engage in business activities such as hotels, restaurants, entertainment,
Internet cafes and workshops which must comply with relevant regulations;


It is forbidden to use the leased houses
for criminal offenses such as gambling, drug trafficking, prostitution and whoring, making and selling pornography, forging document,
printing illegal publications, manufacturing counterfeit and shoddy goods, harboring criminals, harboring and selling stolen goods;


It is forbidden to use the house for pyramid
selling or pyramid selling in disguised forms, operating without a license, starting business without a license, illegal medical
practice, recycling of renewable resources and other illegal activities.








 






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It is forbidden to use the house for fraudulent
activities such as unlicensed outplacement, matchmaking service, training, real estate intermediary agent, etc.


It is forbidden to use the leased house
to produce, store and operate dangerous articles such as flammable, explosive, toxic and radioactive materials.


IX. The leasing parties shall assist and
cooperate with the Rental Housing General Management Office to conduct safety inspection and management of the leased houses, and
shall truthfully provide relevant materials and information.


X. If the lessor and the lessee fail to
perform the safety responsibility according to law, resulting in any damage to a person or his/her property, the affected party
may require the lessor or the lessee to bear the corresponding liability for compensation according to law.


 


	
        Lessor: (seal and signature) xxx

         
	
        Lessee: (seal and signature) xxxx

         

	Entrusted agent, manager: (seal and signature)	Tel:
	Tel:	 


 


October 1, 2018





 






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Supplementary Agreement for the House
Lease Contract (I)


 


Lessor (Party A): Shenzhen Science &
Industrial Park Group Co., Ltd.


Lessee (Party B): Shenzhen CDT Environmental
Technology Co., Ltd.


I. Lease fee: Party B shall pay the full
amount of the house rental fee for the month before the 10th of each month (including 10th day) and no any deduction shall be made.
Party B may choose to pay by cash, cheque or bank transfer. If the transfer method is chosen, Party B shall inform Party A of the
transfer bill. Party A shall issue an official invoice to Party B within 15 days after receiving the rental fee paid by Party B.


II. Settlement of back rent: If Party B
fails to pay the full amount of the house rental fee for the month within the limit time, Party A shall have the right to charge
Party B for overdue payment at the late payment multiplied by 3% of the total monthly rental fee. If it is overdue for a month,
it shall be dealt with in accordance with Article 6 of this Supplemental Agreement.


III. Property management fees, utilities
and other expenses: Party A has transferred the house to a professional property management company for management, and Party B
agrees to sign a property management agreement and pay relevant fees as required.


IV. Compensation for damages: Party B will
be fully responsible for any defect or damage to certain parts of the house due to the negligence of Party B, directly or indirectly
causing property damage or damage to Party A or others, and making compensation by payment or otherwise. Party B shall compensate
Party A for the losses incurred in relation to claims, requests or litigation or legal procedures adopted for settlement by any
person against Party A due to the above-mentioned damage incident.


V. Safety and environmental management:
Party B shall bear all responsibility for the production and fire safety in the leased house, and compensate for all losses. Party
B shall ensure that the pollution caused by the production, research and development, operation and other environmental pollution
is within the scope of the government's policy. Otherwise, Party A has the right to request Party B to rectify. If the rectification
fails to meet the standard, Party A shall have the right to unilaterally cancel the lease and lease deposit paid by Party B shall
not be returned, and Party B shall be responsible for the losses caused thereby. Party A's staff shall have the right to enter
the office and living places rented by Party B for security inspection, and Party B shall cooperate.


VI. Settlement of breaching contract: In
one of the following circumstances, Party B shall agree that Party A and the property company stop all service items (including
water cuts, power cuts, etc.), and the losses caused thereby shall be borne by Party B:


(1) Party B is in arrears with the rental
fee for one month, or Party B is in arrears with all the fees except the rental fees amounting to RMB three thousand;


(2) Without the written consent of Party
A, Party B changes the structure or use of the premises as agreed herein


(3) Party B uses the house to engage in
unlawful and illegal activities;


(4) Without the written consent of Party
A, Party B sublet or sublease the leased house to others;


(5) Party B decorates or rebuilds the leased
house without the written consent of Party A.


Party A shall have the right to request
Party B to rectify according to any of the above circumstances. If Party B fails to rectify within the prescribed time limit, or
owes the rental fee more than two months, Party A shall have the right to unilaterally terminate the lease and dispose of the items
in the leased house and recover the house in accordance with legal means, and deduct the deposit from lease as Party B's compensation
for breach of contract. Party A may terminate the contract by express mail or notify Party B in a newspaper. The date of publication
shall be deemed as service. If Party B has one of the above defaults, Party B shall no longer enjoy the priority of the lease when
the contract expires, and Party A shall have the right to refuse to sign the contract with Party B who has no objection, and the
losses caused thereby shall be borne by Party B.


 






    16


     


    

 


VII. Party B shall not interfere with the
normal business activities of Party A in the public spaces whose rights of operation and profit are owned by Party A, including
the basement, facade, roof, lobby, elevator hall, inside elevator, signboard and advertising space of the building of the leased
house and the ground outside.


VIII. Air-conditioning facilities and equipment:
The indoor and outdoor air-conditioners in the leased area shall be handed over to Party B by Party A without charge. During the
lease period, the air-conditioner indoor unit shall be maintained by Party B. When Party B withholds the lease, it shall ensure
that the transferred facilities and equipment are in good condition. Otherwise, Party A shall have the right to deduct the corresponding
amount of deposit from lease or claim damages from Party B.


IX: Execution and entry into force of the
contract: This supplementary agreement is an attachment to the "House Lease Contract (No.: ), which shall come into force
on the date of signing and have the same legal effect as the "House Lease Contract". In case of any conflict with the
relevant provisions of the House Lease Contract, this supplementary agreement shall prevail. Through consultation, both parties
agree to abide by the supplementary agreement.


 


	
        Party A: Shenzhen Science & Industrial
        Park Group Co., Ltd.

         
	Party B: Shenzhen CDT Environmental Technology Co., Ltd.
	
        Legal representative: xx

         
	Legal representative: xx
	Date: October 1, 2018	
        Date: October 1, 2018

         









 






    17


     


    

 


Supplementary Agreement for the House
Lease Contract (II)


 


Lessor (Party A): Shenzhen Science &
Industrial Park Group Co., Ltd.


Lessee (Party B): Shenzhen CDT Environmental
Technology Co., Ltd.


Party B rents the house of Party A, located
in Unit 4C of Financial Service Technology Innovation Base No. 8 Kefa Road, Nanshan District, Shenzhen, with a total area
of 319.56 Sq.m, and sign the "House Lease Contract" (Hereinafter referred to as "Lease Contract").After
negotiation, both parties reach the supplement agreement on "use of supporting facilities, service fee, and other related
matters of the house, for binding both parties.


1. During the lease contract, Party B shall
pay Party A the separate payment of the housing supporting facilities and service fee (hereinafter referred to as "support
fee") to Party A in addition to the rent of ¥60 per square meter every month (in words: RMB sixty ) to Party
A according to the Lease Contract. The total monthly rental fee is the sum of the rent of the house and the support fee. The two
are paid at the same time on a monthly basis, and Party A shall issue an invoice together.


2. The total monthly rental expenses during
the lease period are as follows:


From October 01, 2018 to September
30, 2020, the rent and support fees for the house are as follows:


 


	Lease period	Unit rental fee (RMB/m2 • month)	Total monthly rental fee (RMB)
	From October 1, 2018 to September 30, 2020	125	39945


 


3. Party B has checked and confirmed the
above-mentioned supporting facilities of the house, and does not hold any objection to Party A's collection of housing support
fees.


4. When Party B pays the first rent of
the house according to Article 3 of the Lease Contract, it shall pay Party A the first-phase support fee at the same time, in total
amounts of ¥39,945 (in words: RMB thirty nine thousand nine hundred and forty five).


5. When Party A collects the deposit from
lease of the house according to Article 9 of the Lease Contract, it also collects the support fee deposit from the Party B for
the support amount of two month, in the total amounts of ¥79,890 (in words: RMB seventy nine thousand eight hundred
and ninety), and Party A shall issue a receipt (the paid deposit is subject to the receipt issued by Party A).The “return
conditions” and “non-refundable conditions” of the support fee deposit are the same as that of the deposit from
release (see Article 9 of the Lease Contract for details).


6. In the "Shenzhen House Lease Contract"
signed by Party A and Party B and the "Supplementary Agreement" , the "house rental fee" and "support
fee" are all including VAT (hereinafter referred to as "tax-included price"), at a tax rate of 5%.During the lease
period, if the value-added tax rate of Party A changes due to national policy reasons, both parties agree to adjust the original
tax-included price (tax rate of 5%) at the new tax rate from the date of change of the tax rate. The calculation formula is: New
tax-included price = [original tax price / (1+5%)] * (1+new tax rate).


7. If Party B needs Party A to issue a
special VAT invoice, it shall provide accurate billing information as required, which are shown in the attached table. In case
of any loss due to the incorrect information mentioned above by Party B, the relevant responsibility shall be borne by Party B.
If Party B is changed from a small-scale taxpayer to a general taxpayer, Party B shall promptly provide Party A with the special
value-added tax invoice information. Party A shall issue a special VAT invoice for Party B from the next month after the receipt
of the billing information.





 






    18


     


    

 


8. Party b shall designate a special person
to sign the VAT invoice issued by Party A for Party B and certify it with the tax authority within the valid period stipulated
by the state as soon as possible. Party B shall bear the relevant responsibilities for failure to certify the invoice due to losing
invoice or expiration for Party B's reasons.


9. Lessee evaluation system


Both parties have agreed to improve the
contents of "Priority Lease Right" in article 12 of the House Lease Contract, and the priority lease right shall be implemented
according to the lessee evaluation system, that Party A shall evaluate the performance of contract by Party B every six months.
In case of any of the classification conditions, Party B shall voluntarily accept the settlement method according to the corresponding
evaluation application:


 


	Customer classification	Condition	Evaluation application
	A	Normal performance of the contract	Enjoy the priority rights under the same conditions when renewing rent
	B	Arrears of rental fee (or management fees)    There are potential safety hazards and Party B refuses to rectify	Not enjoy the priority rights under the same conditions when renewing rent
	C	
        Arrears of rent (or management fees) for
        more than one month

        The actual annual rent paid lower than
        the contract amount of the current year.

        Many potential safety hazards and Party
        B refusing to rectify

        Other violations of the terms of the contract
	
        No longer renew a contract after the contract
        expires

        Does not qualify for re-leasing other properties
        of Party A

	D	
        Many potential safety hazards

        Subletting the house without consent

        Constituting other serious defaults according
        to the terms of the contract
	
        Release the contract as agreed in the contract

        Call to account when necessary

        Does not qualify for re-leasing other properties
        of Party A



 


10. Waive the priority purchasing right


Party B hereby expressly waives the priority
purchasing right to the leased house during the lease term. Party A is not required to notify the Party B of selling the leased
house and Party B shall not raise any objection or claim to Party A in any case due to the issue of the priority purchasing right
of the leased house.


This supplementary agreement is an attachment
to the "House Lease Contract (No.: ), which shall come into force on the date of signing and have the same legal effect as
the "House Lease Contract". In case of any conflict with the relevant provisions of the House Lease Contract, this supplementary
agreement shall prevail.


 






    19


     


    

 


	Party A: Shenzhen Science & Industrial Park Group Co., Ltd.	Party B: Shenzhen CDT Environmental Technology Co., Ltd.
	Legal representative: xx	Legal representative: xx
	Date: October, 1, 2018	Date: October 1, 2018


 






    20


     


    

 





 


Shenzhen House Lease Contract


 


 


 


 


 


 


Prepared by Shenzhen Housing Rental Management
Office


 




    1


     


    

 


Housing Lease Registration Notice


 


1. The material to be submitted for the
registration of the housing lease:


(I) Real estate rights certificate or other
valid documents proving its property rights (right to use) (providing the original and keeping a copy)


(II) The identity certificate of the lessor
or lessee or legal qualification certificate, including:


1. Individual


Mainland residents: ID card or other valid
identification.


Hong Kong, Macao and Taiwan residents:
Mainland Travel Permit for Hong Kong and Macao Residents, Mainland travel permit for Taiwan residents


Foreigners: Passport (with residence permit
or entry visa).


The above documents must be provided with
the original and keep the photocopy.


2. Unit


Business license (social credit code),
military documents, and legal opening certificate of overseas enterprises (providing the original and keeping a copy). The legal
opening certificate of overseas enterprises shall be accompanied by a Chinese translation, which should be notarized or certified
by the embassy or consulate if it has not been certified by the relevant functional departments in China.


Original certificate of the legal representative.


(3) If the shared house is rented, all
the co-owners shall be required to agree to the proof of the lease.


(IV) Authorization


1. Individual's property right: a valid
identity document (checking the original and retaining a copy) and an original power of attorney shall be issued by a principal
and an entrusted agent. The principal shall specify the matters entrusted and the place of signature in the power of attorney.
If the original identity certificate of the principal cannot be obtained, a copy of the identity card signed by the principal shall
be presented. The power of attorney signed by the party involved abroad shall be notarized and certified as required.


2. Unit's property rights: The agent who
is not a representative or the person in charge shall also issue an original power of attorney of the legal representative or the
person in charge. The principal shall present the entrusted matters and the place of signature in the power of attorney. The power
of attorney signed by the party involved abroad shall be notarized and certified as required.


(V) House lease contract.








 






    2


     


    

 


House Lease Contract


 


Lessor (Party A): Shenzhen Science
& Industrial Park Group Co., Ltd. 


Type of ID: □Residential ID □Passport
√Uniform Social Credit Code □Other


ID number: 914403001921796142 


House Information Code Card:


Address: 12/F, Building 1, Financial
Base, No. 8 Kefa Road, Nanshan District, Shenzhen


Tel:                                                        


Entrusted agent: Siyi Wang


Type of ID: □Residential ID □Passport
□Uniform Social Credit Code □Other


ID number:                                                        


Address:                                                        


Tel:                                                        


 



Lessee (Party B): Shenzhen CDT Environmental
Technology Co., Ltd.


Type
of ID: □Residential
ID □Passport √Uniform
Social Credit Code □Other


ID number: 914403000527833426



Address: 4C,
Building 1, Financial Service Technology Innovation Base, No. 8 Kefa Road, Nanshan District, Shenzhen


Tel:0735-86567299


Entrusted agent:                                                       


Tel: 13480765015




 


In accordance with the "Contract Law
of People's Republic of China", "Administrative Measures on Commercial Housing Lease" and "Decision of the
Standing Committee of the Shenzhen Municipal People's Congress on Strengthening the Safety Responsibility of House Leasing",
this contract is concluded by consensus between Party A and Party B.


Article 1Basic Information
of the Property


1.1 Party A shall lease the property (hereinafter
referred to as the leased house) of Unit 4C of Financial Service Technology Innovation Base No. 8 Kefa Road, Nanshan District,
Shenzhen to Party B for use.


The leased house has a total area of 319.56 square meters
(Usable area:    /  square meters, common area:    /   square
meters). Use of leased houses: factory buildings. House Information Code: 4403050070080700042000005.


1.2 Ownership of the Property:


Property owner or legal user is Shenzhen
Science & Industrial Park Group Co., Ltd. Party A holds (√Real estate rights certificate or other valid documents
proving its property rights/□Property Sales Agreement/□Property Rental Agreement/□Other). Name and number
of real estate rights certificate or other valid documents proving its property rights (right to use): SFDZi No.4000602411.
This property (√is/□is not) under mortgage.


1.3 Interior decoration of the property    /     


1.4 Accessary infrastructure:


□ No accessory infrastructure installed,
is an empty property.


□ Accessory infrastructure installed,
details please refer to Appendix III.




 






    3


     


    

 


Article 2Leasing Terms


2.1 The term of Party B renting a leased
house shall be from October 1, 2020 to September 30, 2022, collectively 2 years / months. (The term
stipulated in the preceding paragraph shall not exceed the approved land use period. The term of a single leasing agreement shall
not be less than 1 year.)


2.2 Rent free period:


□Party
B is entitled to a rent-free period (included in the lease term) of / /year /month /day,
and the specific time is from /year /month /day to /year /month
/day. During this period, Party B does not need to pay the rent to Party A, but must bear all costs for water, electricity,
gas, and property management fees other than the rent. When the rent-free period expires, regardless of whether Party B uses the
leased house or not, it shall pay the rent in accordance with the contract.


√Party
B does not enjoy the benefits of a rent free period. The accounting of the rental fee, management fee and other fees starts at
the delivery of the property from Party A.


 


Article 3Rental Fee


3.1 The unit rent of the leased house is
calculated based on the rented area of the house, and the total monthly rent is RMB 38,027.64 (in words: RMB Thirty-eight
thousand and twenty-seven, and sixty-four cents).


3.2 Time of payment: monthly payment, Party
B shall pay the rental fee to Party A Before the 10th of each month. Party A shall issue a receipt of payment to Party B
when collecting the rent.


3.3
Payment method: Party B shall make the payment of the agreed rental fee via □cash/
√wire/□other
/ to Party A


When making the payment via wire, Party
B shall wire the money to the designated bank account of Party A below:


Name of Beneficiary: Shenzhen Science
& Industrial Park Group Co., Ltd.


Bank: China Citic Bank Shenzhen Fuqiang
Branch


Account Number: 8110 3010 1320 0226
468


3.4 During the term of lease, Party A shall
not increase the rental fee without the other party’s consent.


3.5
The two parties agree that the rent will be □increased/□decreased
/ % based on the previous year’s rent standard every year starting from the first year of the lease, as follows:


(1) From / year / month /
day to / year / month / day, the rent standard is RMB/yuan/month (in words: / yuan).


(2) From / year / month /
day to / year / month / day, the rent standard is RMB / yuan /


Month (in words: / yuan).


(3) From / year / month /
day to / year / month / day, the rent standard is RMB / yuan / month (in words: /  yuan).


 


Article 4Deposit


4.1 Within 5 days upon signing this agreement,
Party B shall pay Party A a deposit in the amount of RMB 76056 , in words: RMB Seventy six thousand and fifty six, equivalent
to the rental fee for 2 months (no longer than 2 months). Party A shall issue a receipt of payment to Party B when collecting
the deposit.


 






    4


     


    

 


4.2 The deposit paid by Party B is not
the rent or other expenses prepaid by Party B. It is only a guarantee for Party B to fulfill the obligations stipulated in this
contract. Party A shall not detain Party B’s deposit without reason and refuse to return it. Within 5 days after the expiration
of the lease term or the termination of the contract, and when the following conditions are met at the same time, Party A shall,
after deducting the rent, expenses and liquidated damages that Party B shall bear, return the remaining part of the lease deposit
to Party B without interest (if there is a rent balance, it will be returned):


(1) Party B has not caused damage to the
leased house or repaired the damaged house;


(2) Party B shall return the leased house
(including ancillary facilities) to Party A in the manner agreed in this contract;


(3) If Party B uses the address of the
leased house for industrial and commercial registration, it has moved the industrial and commercial registration address and has
completed other procedures required by law and the government.


 


Article 5Other Fees


5.1 During the lease period, Party A shall
be responsible for paying the use fee of the land used for the leased house and the tax arising from the house lease.


5.2 Party B shall pay the water and electricity
fee, sanitation fee, house (building) property management fee for the leased house, / fees and other expenses incurred due
to the use of leased house.


5.3 Party B shall pay the fees in time
as required after receiving the notice of payment or the evidence of fees provided by Party A, otherwise the resulting late fees,
liquidated damages and related legal consequences shall be borne by Party B.


 


Article 6 Delivery and acceptance of
property


6. 1 Party A shall deliver the leased house
to Party B before October 1, 2020, and ensure that the house and its auxiliary facilities are safe and qualified (including
air quality).


6.2 Party B shall inspect the existing
equipment and facilities of the leased house when Party A delivers the leased house, and both parties shall sign the "Confirmation
of House Delivery" (see Annex III) to complete the delivery.


6. 3 Special confirmation by both parties:
If Party B has not signed the "Confirmation of House Delivery" but Party B has entered the site for decoration, it shall
be deemed that the delivery of the leased house has been completed.





 


The use of the leased
house herein shall be consistent with that in the real estate rights certificate, and the use may be arbitrarily changed without
the approval of the relevant department.


Article 7Decoration


7.1 √On the premise of not affecting
the structure of the house, Party A agrees to Party B to decorate the leased house; if it needs to be reported to the relevant
department for approval according to regulations, □Party A/√Party A shall also entrust Party B to report to the relevant
department for approval. After the expiration of the lease term or the termination of the contract, the decorations shall be □removed
by Party B and restored to their original condition/ □discounted and owned by Party A/ √owned by Party A for free/
□Others


 






    5


     


    

 


□Party A does not agree with Party
B to decorate the leased house.


7. 2 Decoration deposit: In accordance
with the decoration under Article 7.1 of this contract, Party B shall pay a decoration deposit of RMB / yuan (in words:
/ yuan) to Party A or the unit designated by Party A within /  working day before the start of construction. After
the decoration is completed and passed the inspection and acceptance by the fire department, Party A or the unit designated by
Party A shall return the decoration deposit to Party B without interest.


 


Article 8Housing use and
maintenance


8.1 During the lease period, Party B shall
use the leased house and its ancillary facilities in a normal and reasonable manner, use water and electricity safely, and shall
not change the lease purpose without Party A’s consent.


8.2 During the lease period, when Party
B discovers damage or malfunction of the leased house and its auxiliary facilities, it shall promptly notify Party A to repair
it. Party A shall perform repairs within 5 days after receiving Party B’s notice. If it is not possible to notify Party A
or if Party A receives a notice that it will not repair after the expiry date, or if it must be repaired immediately due to an
emergency, Party B has the right to perform repairs on its behalf, and Party A shall bear the cost. If the maintenance of the house
affects the use of Party B, the rent shall be reduced or the lease term shall be extended accordingly.


If Party B deliberately or improperly used
the leased house or ancillary facilities (including Party B’s decoration of the house and added facilities and equipment)
damaged or malfunctioned, Party B shall be responsible for repairs, and Party A shall not be responsible for repairs.


During the lease term, if Party A or Party
B fails to perform the maintenance, maintenance and other obligations stipulated in this contract in a timely manner, causing personal
damage or property loss to the other party or a third party, the responsible party shall be liable for compensation.


 


Article 9


9.1 Sublet


√Party B is not allowed to sublet.


□If the leased house is an industrial
house, and the land supply contract or industrial development supervision agreement related to the leased house permits subletting,
Party A agrees to Party B to sublet according to regulations or agreements, but Party B’s subletting period shall not exceed
the remaining amount agreed in this contract The lease term, and shall be responsible for binding the sub-lessee to perform the
lease obligations, and bear the responsibility for the sub-lessee’s breach of contract, and the sub-lessee shall not sublet
again.


□If the leased house is a house
other than the industrial house, Party A agrees that Party B will sublet the leased house wholly or partly to others, but Party
B’s subletting period shall not exceed the remaining lease period agreed in this contract, and shall be responsible for binding
the sub-tenant to perform Lease obligation, bear responsibility for the breach of contract by the sub-lessee, and the sub-lessee
shall not sublet again.


 






    6


     


    

 


9.2 Renewal


If the lease term of this contract expires
and Party B needs to continue renting the leased house, it shall submit a written lease renewal application to Party A 30 days
before the expiration of the lease term. If the two parties reach an agreement on the renewal of the lease, they shall re-enter
the lease contract or sign the lease term modification agreement. Under the same conditions, Party B has the priority to renew
the lease.


9.3 Priority


When Party A sells the leased house during
the lease period, it shall notify Party B in advance, and Party B has the first right of purchase under the same conditions of
price and payment method. If Party A sells the whole house including the leased house or the whole house connected with other houses,
Party B does not have the right of first refusal.


 


Article 10 Property Return


10. 1 Within one day from the expiration
of the lease term or the termination of this contract, Party B shall promptly vacate and move out of the leased house, and return
the house and auxiliary facilities to Party A. If Party B fails to empty or move out of the house within the agreed time, and cannot
contact Party B, the parties agree to deal with the following methods:


√Party A has the right to treat all
items left in the leased house as waste.


□Party B provides an emergency contact
person. If the emergency contact person of Party B has not emptied the house within days after receiving the notice, Party A has
the right to treat all items left in the leased house as waste.


□Party A entrusts a third-party
custody company to keep the leftovers on its behalf, and Party B shall bear the cost of custody.


□Party A disposes of the leftovers
by □auction/□sale, and keeps the proceeds on behalf of Party B.


□Other.


10.2 The items left after Party B returns
the house shall be deemed as Party B’s waiver of ownership, and Party A has the right to treat them as waste. Party A has
the right to request Party B to bear the expenses incurred by the disposal of waste left by Party B.


10. 3 When the house is returned, both
parties shall submit the inspection on the use of the house and ancillary items, facilities and equipment, water and electricity,
etc., and sign or seal the "Confirmation of Return of the House" (see Annex IV).


 


Article 11 Termination


11. 1 This contract can be terminated after
mutual agreement by both parties.


11.2 If Party B has one of the following
circumstances, Party A has the right to unilaterally terminate the contract and take back the leased house:


(1) Failure to pay or not pay rent or other
expenses as agreed for 30 days;


(2) On the premise that the leased house
meets the agreed delivery standards, Party B refuses to sign the "Confirmation of House Delivery" without justifiable
reasons;


(3) Unauthorized demolishing and changing
the main structure of the movable house;


(4) Change the purpose of the leased house
without authorization;


(5) Sublet the leased house to a third
party without authorization;


(6) Use rented houses to engage in illegal
activities.


11.3 If Party A has one of the following
circumstances, Party B has the right to unilaterally terminate the contract:


(1) Failure to deliver the leased house
within 7 days according to the agreed time;


 






    7


     


    

 


(2) Party A has no right to lease the house
or the house delivered does not comply with the contract, which seriously affects the use of Party B or endangers the safety or
health of Party B;


(3) Failure to undertake the agreed maintenance
obligations or non-payment of various expenses that should be borne by Party A caused Party B to be unable to normally use


Use rental housing.


11.4 In any of the following circumstances,
both parties have the right to terminate the contract:


(1)
The leased house has been expropriated, expropriated and demolished due to social public interest or urban construction needs.
[In this case, Party A shall provide reasonable compensation for the losses suffered by Party B due to the unfulfilled contract
(including decoration losses)] ;


(2) Due to force majeure such as earthquakes,
fires, etc., the leased house is damaged or lost or the house is identified as dangerous and cannot be used;


(3) At the time of signing the contract,
Party A has informed Party B that the mortgage has been set before the lease of the house and may be sanctioned during the lease
term, and is now sanctioned.


11. 5 In the case of the above-mentioned
circumstances, this contract shall be terminated when Party A or Party B serves the other party with the "Notice of Cancellation"
(see Appendix 5) in accordance with the 14th treaty of this contract.


 


Article 12 Liability for breach of contract


12. 1 Party A’s liability for breach
of contract


(1) Party A has the circumstances stipulated
in Article 11.3 of this contract. If Party B terminates the contract, Party A shall return the deposit and the balance of rent
collected in advance within 5 days after the termination of the contract, and pay Party B liquidated damages in accordance with
the contract monthly rent amount. If the liquidated damages paid are insufficient to cover the losses of Party B, Party A shall
also be responsible for compensation.


(2) If Party A delivers the house to Party
B overdue or there are circumstances stipulated in Article 11.3 Item 2 and Item 3 of this contract, and Party B does not terminate
the contract, Party A shall pay twice the daily rent amount during the breach of contract. Party B shall pay liquidated damages
(the maximum liquidated damages shall not exceed twice the monthly rent amount).


 






    8


     


    

 


(3) During the lease period, if Party A
unilaterally terminates the contract without the conditions stipulated in Article 11 of this contract, it shall notify Party B
in writing at least 30 days in advance, refund the deposit and the balance of the rent collected in advance, and pay twice the
contract monthly rent amount Pay liquidated damages to Party B. If the liquidated damages paid are insufficient to cover the losses
of Party B, Party A shall also be liable for expensive compensation.


12.2 Party B's liability for breach of
contract


(1) Party B has the circumstances stipulated
in Article 11.2 of this contract. If Party A terminates the contract, Party B shall pay Party A liquidated damages in accordance
with the standard of the contract monthly rent amount. If the liquidated damages paid are insufficient to cover the losses of Party
A, Party B shall also be responsible for compensation.


(2) If Party B pays rent, deposit or other
expenses overdue, and fails to meet the contract termination conditions or meets the contract termination conditions but Party
A does not terminate the contract, Party B shall pay Party A twice the daily rent amount for every day overdue Liquidated damages.


(3) During the lease period, if Party B
unilaterally terminates the contract without the conditions stipulated in Article 11 of this contract, it shall notify Party A
in writing at least 30 days in advance and pay Party A liquidated damages at twice the contract monthly rent. If the liquidated
damages paid are insufficient to cover the losses of Party A, Party B shall also be responsible for compensation.


(4) When the lease term expires or the
contract is terminated, Party B shall move out and return the house in time. For those who move out or refuse to return after the
deadline, for each day overdue, Party B shall pay Party A a penalty of twice the daily rent.


(5) If Party B renovates, decorates, or
installs facilities and equipment that affect the structure of the leased house without the consent of Party A, it shall restore
the leased house to its original condition and compensate Party A for the losses caused thereby. If the aforementioned actions
of Party B cause personal damage or property loss to Party A or a third party, Party B shall bear all legal liabilities and compensate
for the loss.


 


Article 13 Special Provisions


Party A and Party B responded to the Appendix
7 "Shenzhen Housing Leasing Safety Management Responsibility Letter" (hereinafter referred to as the "Responsibility
Letter") to fully and appropriately perform the safety management responsibilities and obligations stipulated in the "Your
Job Letter". If any party violates the provisions of the "Letter of Responsibility" and causes a safety liability
accident during the lease of the house under this contract or causes personal damage or property loss to others, the responsible
party shall bear all legal liabilities and economic losses.


 


Article 14 Notification and delivery


14.1 Both parties agree to send notifications
via group mail, email, WeChat, and SMS. Both parties confirm that their effective delivery address is as follows:


Party A's delivery address:


√Same as the address on top


□Other addresses □E-mail
□WeChat □Mobile


Party B's delivery address:


√Same as the address on top


□Other addresses □E-mail
□WeChat □Mobile


If there is any change to the above address,
the other party shall be notified in writing, otherwise the above address will still be regarded as a valid address. If a notice
or document from one party to the other party is sent by mail, the date of receipt of the recipient’s reply shall be the
date of service. If the document is returned by mail at the above address, the date of return shall be regarded as the date of
service; by email or WeChat or if it is sent by SMS, the sending date shall be deemed as the delivery date.


14.2 If it cannot be delivered through
the above methods, before Party B withdraws the lease, the notice sent by Party A to the location of the leased house under this
contract shall be deemed to be effectively delivered.


 



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Article 15


15. 1 Disputes arising during the performance
of this contract shall be resolved by both parties through negotiation; if the negotiation fails, the relevant administrative department,
industry association or other third party may be requested to mediate, or:


□Apply to Shenzhen International
Arbitration Court for arbitration.


√File a lawsuit with the people's
court where the leased house is located.


15.2 The clauses related to dispute resolution
of the contract exist independently, and the change, cancellation, termination, invalidity or cancellation of the contract will
not affect its validity.


 


Article 16 Modification


No party shall unilaterally modify the
content of this contract unless the two parties reach an agreement through consultation. Both parties can sign a supplementary
agreement for the change of this contract, which has the same legal effect as this contract.


 


Article 17 Contract signing, registration
and filing


17.1 This contract takes effect from the
date of signing by both parties, in one copy, Party A holds one copy, Party B holds one copy, and the housing leasing management
department holds one copy, with the same legal effect.


17.2 The annex to this contract is a valid
part of the contract and has the same legal effect as this contract.


17.3 Within 10 days after the signing
of this contract, both parties shall go to the housing leasing management department to go through the house leasing registration
and filing procedures in time.







 


Party A (seal and signature): /s/ Shenzhen
Science & Industrial Park Group Co., Ltd.


Legal representative:


Tel:


Bank account:


Entrusted agent (seal and signature)
             August 21, 2020


 


Party B (seal and signature): /s/ Shenzhen
CDT Environmental Technology Co., Ltd.


Legal representative:


Tel:


Bank account:


Entrusted agent (seal and signature): 
           August
21, 2020








 






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(Attached page)








 


 


 


 


 


 


 






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Special Note


 


1. Before signing the contract, both parties
should read the contract carefully. The contents of the contract terms may be added, deleted, selected, supplemented, filled, and
modified after negotiation. After the contract is signed, the unmodified content and the content filled by both parties (confirmed
by signatures or seals of both parties) shall be deemed as the agreed contents of this contract. The selection, supplementation,
filling, and modification of this contract shall give priority to the effectiveness of handwritten items.


2. Before signing the contract, the lessor
shall present the real estate rights certificate or other valid certificate proving the real estate right and proof of the identity
of the lessor or legal qualification to the lessee. If the house is entrusted by others, a power of attorney must be provided;
if the house is rented out by co-owners, proof of consent of all co-owners and letter of authorization must be provided; the lessee
shall present his/her identity certificate or legal qualification certificate to the lessor.


3. The signing and performance of the contract
by both parties shall be carried out in accordance with the law and shall not violate the provisions of relevant legal procedures
or engage in illegal acts.


4. Once this contract is signed, it shall
be legally binding on both parties. Both parties shall perform their obligations in accordance with the agreement of the parties,
and may not change or terminate the contract without authorization or agreement.


5. The contents of the contract filled
out by the parties themselves shall be written with a brush, pen and signature pen using carbon ink or blue-black ink, and confirmed
by signatures or seals.


6. There are blank spaces in the text of
the contract (underlined), which can be agreed by the parties; some provisions can be selected by the parties (marked by □).


7. After signing this contract, both parties
shall timely register or put on record with the competent department of house leasing authority.


8. The parties to the lease may, according
to the actual needs, decide the original number of the contract and carefully check them when signing the contract to ensure that
the contracts are consistent with each other. In any case, both parties shall hold at least one original contract.


9. If the content of this contract is significantly
changed or released, both parties shall go through relevant procedures with the original registration authority in time.


10. Both parties may negotiate how to dispose
of the retained items in the leased house after the lease expires or the contract is terminated, as stipulated in the attached
page.


11. Article 6 herein “Use of Leased
House” shall be filled out as follows: commercial, office, factory, warehouse, comprehensive, and others.








 






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Shenzhen House Leasing Safety Management


 


 


 


 


 


Responsibility Letter


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


Prepared and printed by the Shenzhen Floating
Population and Rental Housing General Management Office








 






    13


     


    

 


In order to implement the "Decision
of the Standing Committee of the Shenzhen Municipal People's Congress on Strengthening the Safety Responsibility of House Leasing",
further specify the safety responsibility for house leasing, strengthen the safety management of leased house, and safeguard the
safety of people's lives and property, this responsibility statement is formulated in accordance with relevant laws and regulations.


I. The lessor and lessee of the production
and operation houses (including various commodity markets and their stalls and counters), office buildings, residential property
and other houses in the administrative area of this Municipality are the safety responsible persons.


II. The lessor renting the house shall
have the certificate of house ownership or other documents as stipulated by the municipal government. If the house is rent by an
entrusted person, the owner shall sign a written entrustment agreement with the entrusted person to stipulate their respective
safety responsibilities. The house sub-tenant, other persons who have actual rental behaviors and the house lender should bear
the safety responsibility of the lessor.


III. The lessor shall ensure that the buildings
for leasing and their entrances, exits, fire-fighting, gas, electric power facilities, etc. shall comply with the relevant laws
and regulations and the safety standards stipulated by the relevant administrative departments. Where it is required by laws and
regulations to obtain relevant licenses or approval documents before leasing house, the lessor shall obtain such licenses.


IV. If the lessee uses the leased house
for production and operation activities, the lessor shall require the lessee to show the relevant certificate of the fire protection
formalities and the business license for industry and commerce or the business license before starting business.


V. The lessor shall check and make a written
record of the safe use and use nature of the leased house at least once a quarter, and the lessee shall cooperate and sign the
record. If the lessor is unable to check personally due to objective reasons, he/she shall entrust others to check.


VI. The lessor shall report to the Rental
Housing General Management Office or other relevant administrative department when the lessor checks and discovers potential safety
hazards in the leased house and the lessee's changing the use nature of the house without permission.


VII. The lessee shall use the house safely
and reasonably in accordance with the provisions of laws and regulations and the lease contract, and shall not change the structure
and use nature of the house without permission. In case of discovering the potential safety hazard in the leased house, the lessee
shall immediately notify the lessor and report it to the Rental Housing General Management Office or other relevant administrative
departments.


VIII. The lessee shall not change the function
of the leased house without permission, use the house to engage in business activities such as hotels, restaurants, entertainment,
Internet cafes and workshops which must comply with relevant regulations;


It is forbidden to use the leased houses
for criminal offenses such as gambling, drug trafficking, prostitution and whoring, making and selling pornography, forging document,
printing illegal publications, manufacturing counterfeit and shoddy goods, harboring criminals, harboring and selling stolen goods;


It is forbidden to use the house for pyramid
selling or pyramid selling in disguised forms, operating without a license, starting business without a license, illegal medical
practice, recycling of renewable resources and other illegal activities.








 






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It is forbidden to use the house for fraudulent
activities such as unlicensed outplacement, matchmaking service, training, real estate intermediary agent, etc.


It is forbidden to use the leased house
to produce, store and operate dangerous articles such as flammable, explosive, toxic and radioactive materials.


IX. The leasing parties shall assist and
cooperate with the Rental Housing General Management Office to conduct safety inspection and management of the leased houses, and
shall truthfully provide relevant materials and information.


X. If the lessor and the lessee fail to
perform the safety responsibility according to law, resulting in any damage to a person or his/her property, the affected party
may require the lessor or the lessee to bear the corresponding liability for compensation according to law.


 


	
        Lessor: (seal and signature) xxx

         
	
        Lessee: (seal and signature) xxxx

         

	Entrusted agent, manager: (seal and signature)	Tel:
	Tel:	 


 


October 1, 2018





 






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Supplementary Agreement for the House
Lease Contract (I)


 


Lessor (Party A): Shenzhen Science &
Industrial Park Group Co., Ltd.


Lessee (Party B): Shenzhen CDT Environmental
Technology Co., Ltd.


I. Lease fee: Party B shall pay the full
amount of the house rental fee for the month before the 10th of each month (including 10th day) and no any deduction shall be made.
Party B may choose to pay by cash, cheque or bank transfer. If the transfer method is chosen, Party B shall inform Party A of the
transfer bill. Party A shall issue an official invoice to Party B within 15 days after receiving the rental fee paid by Party B.


II. Settlement of back rent: If Party B
fails to pay the full amount of the house rental fee for the month within the limit time, Party A shall have the right to charge
Party B for overdue payment at the late payment multiplied by 3% of the total monthly rental fee. If it is overdue for a month,
it shall be dealt with in accordance with Article 6 of this Supplemental Agreement.


III. Property management fees, utilities
and other expenses: Party A has transferred the house to a professional property management company for management, and Party B
agrees to sign a property management agreement and pay relevant fees as required.


IV. Compensation for damages: Party B will
be fully responsible for any defect or damage to certain parts of the house due to the negligence of Party B, directly or indirectly
causing property damage or damage to Party A or others, and making compensation by payment or otherwise. Party B shall compensate
Party A for the losses incurred in relation to claims, requests or litigation or legal procedures adopted for settlement by any
person against Party A due to the above-mentioned damage incident.


V. Safety and environmental management:
Party B shall bear all responsibility for the production and fire safety in the leased house, and compensate for all losses. Party
B shall ensure that the pollution caused by the production, research and development, operation and other environmental pollution
is within the scope of the government's policy. Otherwise, Party A has the right to request Party B to rectify. If the rectification
fails to meet the standard, Party A shall have the right to unilaterally cancel the lease and lease deposit paid by Party B shall
not be returned, and Party B shall be responsible for the losses caused thereby. Party A's staff shall have the right to enter
the office and living places rented by Party B for security inspection, and Party B shall cooperate.


VI. Settlement of breaching contract: In
one of the following circumstances, Party B shall agree that Party A and the property company stop all service items (including
water cuts, power cuts, etc.), and the losses caused thereby shall be borne by Party B:


(1) Party B is in arrears with the rental
fee for one month, or Party B is in arrears with all the fees except the rental fees amounting to RMB three thousand;


(2) Without the written consent of Party
A, Party B changes the structure or use of the premises as agreed herein


(3) Party B uses the house to engage in
unlawful and illegal activities;


(4) Without the written consent of Party
A, Party B sublet or sublease the leased house to others;


(5) Party B decorates or rebuilds the leased
house without the written consent of Party A.


Party A shall have the right to request
Party B to rectify according to any of the above circumstances. If Party B fails to rectify within the prescribed time limit, or
owes the rental fee more than two months, Party A shall have the right to unilaterally terminate the lease and dispose of the items
in the leased house and recover the house in accordance with legal means, and deduct the deposit from lease as Party B's compensation
for breach of contract. Party A may terminate the contract by express mail or notify Party B in a newspaper. The date of publication
shall be deemed as service. If Party B has one of the above defaults, Party B shall no longer enjoy the priority of the lease when
the contract expires, and Party A shall have the right to refuse to sign the contract with Party B who has no objection, and the
losses caused thereby shall be borne by Party B.


 






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VII. Party B shall not interfere with the
normal business activities of Party A in the public spaces whose rights of operation and profit are owned by Party A, including
the basement, facade, roof, lobby, elevator hall, inside elevator, signboard and advertising space of the building of the leased
house and the ground outside.


VIII. Air-conditioning facilities and equipment:
The indoor and outdoor air-conditioners in the leased area shall be handed over to Party B by Party A without charge. During the
lease period, the air-conditioner indoor unit shall be maintained by Party B. When Party B withholds the lease, it shall ensure
that the transferred facilities and equipment are in good condition. Otherwise, Party A shall have the right to deduct the corresponding
amount of deposit from lease or claim damages from Party B.


IX: Execution and entry into force of the
contract: This supplementary agreement is an attachment to the "House Lease Contract (No.: ), which shall come into force
on the date of signing and have the same legal effect as the "House Lease Contract". In case of any conflict with the
relevant provisions of the House Lease Contract, this supplementary agreement shall prevail. Through consultation, both parties
agree to abide by the supplementary agreement.


 


	
        Party A: Shenzhen Science & Industrial
        Park Group Co., Ltd.

         
	Party B: Shenzhen CDT Environmental Technology Co., Ltd.
	
        Legal representative: xx

         
	Legal representative: xx
	Date: October 1, 2018	
        Date: October 1, 2018

         









 






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Supplementary Agreement for the House
Lease Contract (II)


 


Lessor (Party A): Shenzhen Science &
Industrial Park Group Co., Ltd.


Lessee (Party B): Shenzhen CDT Environmental
Technology Co., Ltd.


Party B rents the house of Party A, located
in Unit 4C of Financial Service Technology Innovation Base No. 8 Kefa Road, Nanshan District, Shenzhen, with a total area
of 319.56 Sq.m, and sign the "House Lease Contract" (Hereinafter referred to as "Lease Contract").After
negotiation, both parties reach the supplement agreement on "use of supporting facilities, service fee, and other related
matters of the house, for binding both parties.


1. During the lease contract, Party B shall
pay Party A the separate payment of the housing supporting facilities and service fee (hereinafter referred to as "support
fee") to Party A in addition to the rent of ¥60 per square meter every month (in words: RMB sixty ) to Party
A according to the Lease Contract. The total monthly rental fee is the sum of the rent of the house and the support fee. The two
are paid at the same time on a monthly basis, and Party A shall issue an invoice together.


2. The total monthly rental expenses during
the lease period are as follows:


From October 01, 2018 to September
30, 2020, the rent and support fees for the house are as follows:


 


	Lease period	Unit rental fee (RMB/m2 • month)	Total monthly rental fee (RMB)
	From October 1, 2018 to September 30, 2020	125	39945


 


3. Party B has checked and confirmed the
above-mentioned supporting facilities of the house, and does not hold any objection to Party A's collection of housing support
fees.


4. When Party B pays the first rent of
the house according to Article 3 of the Lease Contract, it shall pay Party A the first-phase support fee at the same time, in total
amounts of ¥39,945 (in words: RMB thirty nine thousand nine hundred and forty five).


5. When Party A collects the deposit from
lease of the house according to Article 9 of the Lease Contract, it also collects the support fee deposit from the Party B for
the support amount of two month, in the total amounts of ¥79,890 (in words: RMB seventy nine thousand eight hundred
and ninety), and Party A shall issue a receipt (the paid deposit is subject to the receipt issued by Party A).The “return
conditions” and “non-refundable conditions” of the support fee deposit are the same as that of the deposit from
release (see Article 9 of the Lease Contract for details).


6. In the "Shenzhen House Lease Contract"
signed by Party A and Party B and the "Supplementary Agreement" , the "house rental fee" and "support
fee" are all including VAT (hereinafter referred to as "tax-included price"), at a tax rate of 5%.During the lease
period, if the value-added tax rate of Party A changes due to national policy reasons, both parties agree to adjust the original
tax-included price (tax rate of 5%) at the new tax rate from the date of change of the tax rate. The calculation formula is: New
tax-included price = [original tax price / (1+5%)] * (1+new tax rate).


7. If Party B needs Party A to issue a
special VAT invoice, it shall provide accurate billing information as required, which are shown in the attached table. In case
of any loss due to the incorrect information mentioned above by Party B, the relevant responsibility shall be borne by Party B.
If Party B is changed from a small-scale taxpayer to a general taxpayer, Party B shall promptly provide Party A with the special
value-added tax invoice information. Party A shall issue a special VAT invoice for Party B from the next month after the receipt
of the billing information.





 






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8. Party b shall designate a special person
to sign the VAT invoice issued by Party A for Party B and certify it with the tax authority within the valid period stipulated
by the state as soon as possible. Party B shall bear the relevant responsibilities for failure to certify the invoice due to losing
invoice or expiration for Party B's reasons.


9. Lessee evaluation system


Both parties have agreed to improve the
contents of "Priority Lease Right" in article 12 of the House Lease Contract, and the priority lease right shall be implemented
according to the lessee evaluation system, that Party A shall evaluate the performance of contract by Party B every six months.
In case of any of the classification conditions, Party B shall voluntarily accept the settlement method according to the corresponding
evaluation application:


 


	Customer classification	Condition	Evaluation application
	A	Normal performance of the contract	Enjoy the priority rights under the same conditions when renewing rent
	B	Arrears of rental fee (or management fees)    There are potential safety hazards and Party B refuses to rectify	Not enjoy the priority rights under the same conditions when renewing rent
	C	
        Arrears of rent (or management fees) for
        more than one month

        The actual annual rent paid lower than
        the contract amount of the current year.

        Many potential safety hazards and Party
        B refusing to rectify

        Other violations of the terms of the contract
	
        No longer renew a contract after the contract
        expires

        Does not qualify for re-leasing other properties
        of Party A

	D	
        Many potential safety hazards

        Subletting the house without consent

        Constituting other serious defaults according
        to the terms of the contract
	
        Release the contract as agreed in the contract

        Call to account when necessary

        Does not qualify for re-leasing other properties
        of Party A



 


10. Waive the priority purchasing right


Party B hereby expressly waives the priority
purchasing right to the leased house during the lease term. Party A is not required to notify the Party B of selling the leased
house and Party B shall not raise any objection or claim to Party A in any case due to the issue of the priority purchasing right
of the leased house.


This supplementary agreement is an attachment
to the "House Lease Contract (No.: ), which shall come into force on the date of signing and have the same legal effect as
the "House Lease Contract". In case of any conflict with the relevant provisions of the House Lease Contract, this supplementary
agreement shall prevail.


 






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	Party A: Shenzhen Science & Industrial Park Group Co., Ltd.	Party B: Shenzhen CDT Environmental Technology Co., Ltd.
	Legal representative: xx	Legal representative: xx
	Date: October, 1, 2018	Date: October 1, 2018


 






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