1 25 May 2020 Subject: Notification on Resolution of the Board of Directors’ Meeting No. 5/2020, Change of Directors and Directors’ Power, Entering into Connected Transaction, Entering into

intra-company (or intra-business segment) transactions 2Total of each segment may not always tally with consolidated financials due to holding segment 3Excludes price adjustment for captive sales on

) transactions 2Total of each segment may not always tally with consolidated financials due to holding segment 3Excludes price adjustment for captive sales on freight saving. This does not have any impact on

increased overall average operating rate of 86%. Higher freight rates positively impacted sales price in our respective domestic markets. This translated into an overall Fibers Core EBITDA growth of 23% QoQ

บริษทั ไฮโดรเท็ค จ ำกดั (มหำชน) Method Formula Calcution Value 1.) Net Tangible Assets NTA of HSMC x Holding Percentage NTA of Company Cannot be calculated due to the HSMC will be set up on 15 July 2015 2

GS through indirect holding in HECH and holding directly in GS. And when GS has earning per share not less than an agreement, the Company will purchase additional 69,226 shares for the first time and

licensed to undertake securities businesses under the law on securities and exchange; “Executive” means director, manager or person with power of management; “Person with power of management” means executive

Controlling Power To prepare the consolidated financial statements Per the investment proportion The Company hereby informs you that the consideration and approval of the investment in S-TREK ordinary shares in

private sector contribute a high demand of skilled workers and lead to an increase in household income and consumer purchasing power (Source: Bank of Thailand). Meanwhile, a rise in average oil price in the

in appraisal services in the Kingdom of Thailand continuously for not less than 1 year; (4) having a manager and a person holding executive position responsible for the working field relating to asset