-2033-9660 27 January 2021 Attention: President of the Association of Thai Securities Companies President of the Association of Investment Management Companies Managers All securities companies All

Securities Companies President of the Association of Investment Management Companies Managers All securities companies All securities companies licensed to undertake securities business in the category of

Harn Engineering Solutions Public Company Limited (“The Company”) in the meeting 6/2019 on Wednesday 13 November 2019 has approved the company to enter into lease agreement for office building, futsal

Pursuant to the MOU, SEC and TGO will cooperate in sharing knowledge, communicating and giving advice to listed companies, securities issuers or business operators under SEC supervision regarding the

agreement to execute the transaction. After approval by the Company’s Board of Directors, with retroactive effect from 1 April 2017 until 11 May 2020. 2. Party and relationship. The Provincial Waterworks

Company’s interest and benefit. 3.2 Machinery Purchase Agreement Determining the consideration value is conducted by comparing the lowest price from 2 independent appraisal companies from machineries

-9320 Ref: PLC 2017/015 September 25, 2017 Subject: Disclosure of Connected Transaction Information Regarding Renew land rental agreement To: The President of the Stock Exchange of Thailand Panjawattana

-9320 Ref: PLC 2020/002 February 3, 2020 Subject: Disclosure of Connected Transaction Information Regarding Area rental agreement To: The President of the Stock Exchange of Thailand Panjawattana Plastic

www.ucity.co.th (-Translation-) Ref. No. U.SET 010/2019 April 30, 2019 Subject : Entering into the Agreement to Acquire Ordinary Shares in 12 Companies in Germany and Switzerland To : The President The Stock

as follows: The entering into the Marketing Support Service Agreement between Dream Islands Development 2 Private Limited ("DID 2") (a subsidiary of the Company having 99.99 percent of total issued and