Mr. Chanon Wangtal On March 8, 2018, Mr. Chanon Wangtal acquired shares of META Corporation Public Company Limited (META) (previously named Vintage Engineering Public Company Limited (VTE)), which

Mr. Tradsin Chongussayakul Mr. Tradsin Chongussayakul, Director of T engineering corporation public company limited (“T”) (currently renamed PSG Corporation Public Company Limited (PSG)). He was

Mr. Jakchai Sakunekphaisan During 10 – 13 May 2024, Mr. Jakchai Sakunekphaisan manipulated the price and/or trading volumes of Prosper Engineering Public Company Limited (PROS) stocks. His activities

No UN/SET/HO/A61/011503 15th January 2018 Subject: Clarification of the Connected Transaction in the company’s asset disposal Attention: President of the Stock Exchange of Thailand Unique Engineering

Held Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No RWI CAPITAL ENGINEERING NETWORK PUBLIC COMPANY LIMITED

UBIS (ASIA) PUBLIC COMPANY LIMITED Filing FinancialStatement 56-1 56-2 Ranking UBE UBON BIO ETHANOL PUBLIC COMPANY LIMITED Filing FinancialStatement 56-1 56-2 Ranking UEC UNIMIT ENGINEERING PUBLIC

Q2/2020. Main reasons were delay to start work of new projects and award schedule was delayed by pandamic issue such as Engineering work in their headquater have been delayed. Additional, main

to the Notification of Capital Market Supervisory Board Ref. No. TorJor. 20/2551 Subject : Rules for entering into Material Transaction Deemed as Acquisition or Disposal of Assets. From calculation the

, thus sales also decrease in line with the fuel material cost of natural gas. 3 Q1-2021 Q1-2020 THB Mn THB Mn THB Mn % Revenue from construction under a concession arrangment - 131.3 (131.3) N.A. (

derived from the management service and engineering service.  Overall gross profit margin decreased from 17.0% to 11.9% amount Baht (16.37) million. 2019 2018 Revenue 443.24 406.54 36.70 9.0% Cost 390.30