LIMITED MANAGEMENT DISCUSSION AND ANALYSIS FOR Q3/2018 2 2. ECONOMIC SITUATION Thai economy in Q3/2018 continuously grew. Export-oriented manufacturing businesses expanded for specific sector, automobile

by the Company and the interviews with management were valid and true. The opinion obtained was credible and close to the current situation. ▪ No past events or imminent events or impending events

LIMITED MANAGEMENT DISCUSSION AND ANALYSIS FOR Q1/2018 2 2. ECONOMIC SITUATION Thai economy in Q1/2018 continually expanded, supported by every economic engine especially merchandise exports, which were

DEVELOPMENT AND MANAGEMENT PUBLIC COMPANY LIMITED MANAGEMENT DISCUSSION AND ANALYSIS FOR Q2/2018 2 2. ECONOMIC SITUATION Thai economy for the 5 months ended May 2018 continually expanded, supported by

the Specific Investor (Private Placement) 5. Profile and Working Experience of a Nominated Director Following Hydrotek Public Company Limited (the “Company”)’s Board of Directors’ Meeting No.6/2018 held

Investor (Private Placement) 5. Profile and Working Experience of a Nominated Director Following Hydrotek Public Company Limited (the “Company”)’s Board of Directors’ Meeting No.6/2018 held on April 3, 2018

The Securities and Exchange Commission (SEC), through its Transparency Working Group, held a meeting to discuss measures for promoting organizational integrity and transparency in 2025. Mrs

November 13 ,2020 Dear Director and The Manager of SET Re: Clarification on the Operating Result of Quarter 3/2020 Thailand economy’s condition of Quarter 3/2563 was continued to shrink by domestic

and Baht 55 million, respectively. The Group’s policy on allowance for doubtful accounts is based on past collection history, aging profile of outstanding debts and the prevailing economic condition

which occurred on mid of 2019 for projects’ working capital. Statement of Financial Position (Unit: Million Baht) Details 31 Mar 2020 31 Dec 2019 Increased (Decreased) % Assets Current assets Cash and