(Thailand) Public Company Limited (“INGRS” or “the Company”) would like to provide an explanation about our 3-months financial performance for the period ended 30 April 2020: 1. Sales Revenue INGRS registered

participating company directors and entities related to listed companies. SEC Secretary-General said: “The SEC puts and places the priorities on enhancing the quality of listed companies and related parties

February 2017 to avoid loss.Eng Passakornnatee, Deputy Chief Executive Officer,  Executive Vice President, and Director of ICHI, knew the inside information related to ICHI’s financial statement year 2016

U City Public Company Limited (Registration No. 0107537000459) 21 TST Tower Soi Choei Phuang, Viphavadi-Rangsit Road, Chomphon, Chatuchak, Bangkok 10900, Thailand T: +66.2273.8838 F: +66.2273.8858

Page 1 Date 25 February 2020 Re: Management Discussion & Analysis for the Year Ended 31 December 20020 To The President of the Stock Exchange of Thailand (SET) CHAOPRAYAMAHANAKORN PUBLIC COMPANY

1 / 4 No.IR.002/2018 22 February 2018 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

Board of Directors of DCON Products Public Company Limited has resolved on 10 May 2018 to adopt the financial statement for the 1st quarter of 2018 ended 31 March 2018, the Company wishes to submit

. Sincerely yours, (Mr. Sompon Roekwibunsi) Chief Executive Officer Authorized to sign on behalf of the Company

/2562 of the Board of Directors of DCON Products Public Company Limited has resolved on 15 May 2019 to adopt the financial statement for the 1st quarter of 2019 ended 31 March 2019, the Company wishes to

informed accordingly Sincerely yours, U City Public Company Limited ________________________________ (Miss Piyaporn Phanachet) Director and Chief Executive Officer