Samchai Steel Industries Public Company Limited Samchai Steel Industries Public Company Limited ("SAM") had duties to prepare and submit an annual report for the year 2018 (Form 56-2) to

SAMCHAI STEEL INDUSTRIES PUBLIC COMPANY LIMITED Samchai Steel Industries Public Company Limited ("SAM") had duties to prepare and submit an annual registration statement for the year 2019

Mr. Varoonchai Leekanchanakorn Mr. Varoonchai Leekanchanakorn, a Managing Director for the operation of Samchai Steel Industries Public Company Limited ("SAM"), had duties to supervise the

Mahachai Hospital Public Company Limited Mahachai Hospital Public Company Limited ("M-CHAI") had duties to prepare and submit an Interim Management Discussion and Analysis for the year 2022

Mr. Chai Junwikul During the period of 16 May 2015 to 8 October 2015, Mr. Chai Junwikul colluded with others to sell and purchase Crown Tech Advance Public Company Limited ("AJD") shares

Mr. Varoonchai Leekanchanakorn Mr. Varoonchai Leekanchanakorn, a Managing Director who is responsible for the operation of Samchai Steel Industries Public Company Limited ("SAM"), had

Mr. Pongpat Patanavanich Mr. Pongpat Patanavanich, who is responsible for the operation of Mahachai Hospital Public Company Limited ("M-CHAI"), shall be liable for M-CHAI’s failure to

the share price manipulation of Chai Watana Tannery Group PLC (CWT) by handling the trading orders of CWT shares for a group of persons. She also traded CWT shares for herself through Mr. Payut

Mr. Chai Sophonpanich On 7 November 2014, Mr.Chai Sophonpanich, authorized person of Bangkok Insurance Public Company Limited (BKI), ordered 200,000 of Bangkok Life Assurance Public Company Limited

became publicly known on February 28, 2014. Such action was deemed taking an unfair advantage of other people, and Chai gained benefits indirectly from such other persons’ purchases of BKI shares. SEC