the Board of Directors’ meeting for connected transaction and Schedule date for the Extraordinary General Meeting of Shareholders No. 1/2016 To: The President, The Stocks Exchange of Thailand The Board

Exchange of Thailand CH. Karnchang Public Company Limited hereby informs the resolutions of the Board of Directors’ Meeting No. 1/2019 which was held on February 28, 2019 as follows: 1. Resolved to approve

the Stock Exchange of Thailand CH. Karnchang Public Company Limited hereby informs the resolutions of the Board of Directors’ Meeting No. 1/2019 which was held on February 28, 2019 as follows: 1

) Attention : Director and Manager of the Stock Exchange of Thailand I.C.C. International Public Company Limited would like to report the resolutions of the Board of Directors’ Meeting # 11/2560 held on March

Microsoft Word - MDA FY18 EN February 20, 2019 To President The Stock Exchange of Thailand Subject Notification on the difference of revenue from sales and net profit YOY by more than 20 percent

Notification of the Office of Securities and Exchange Commission No. Sor Thor/Nor. 45/2559 Re: Rules in the Detail of Regulations Concerning the Establishment of Risk Management System for Business Continuity of

-Translation- Ref. IR 62/005 March 13, 2019 Subject: transaction yDisclosure of the information regarding related part To : President, The Stock Exchange of Thailand T.K.S. Technologies Public

-Translation- Ref. IR 62/005 March 13, 2019 Subject: Disclosure of the information regarding related party transaction (Additional Information) To : President, The Stock Exchange of Thailand T.K.S

may be greater. As a result, the company is required to disclose information memorandum pertaining to the transaction to the Stock Exchange of Thailand, together with appointing an Independent Financial

บริษัท วนชัย กรุ๊ป จำกัด(มหาชน) - Translation - 24 May 2019 Subject : Disclosure of connected transaction by a subsidiary Attention : President The Stock Exchange of Thailand Vanachai Group Public