No. WHAUP-CS025/2018 28 May 2018 Subject: Notification of Information Memorandum of Related Party Transaction in Relation to Right to Operate Water Utilities Business in WHA Hemaraj Industrial Zone 1

/2561 June 19, 2018 Subject: Management’s discussion and analysis of the Company’s operating results for Q1/2018 period To: President The Stock Exchange of Thailand DOD Biotech Public Company Limited

บริษัท วนชัย กรุ๊ป จำกัด(มหาชน) -Translation- 25 June 2018 Subject : Disclosure of connected transaction Attention : President The Stock Exchange of Thailand Vanachai Group Public Company "VNG" would

บริษัท วนชัย กรุ๊ป จำกัด(มหาชน) -Translation- 25 June 2018 Subject : Disclosure of connected transaction by a subsidiary company Attention : President The Stock Exchange of Thailand Vanachai Group

บริษัท วนชัย กรุ๊ป จำกัด(มหาชน) -Translation- 25 June 2018 Subject : Disclosure of connected transaction by a subsidiary company To : President The Stock Exchange of Thailand Vanachai Group Public

, JOMTHONG, BANGKOK 10150, THAILAND TEL. 02-473-8000 FAX: 02-473-8398 - Translation - No. GFPT 12/2561 July 24th, 2018 Subject: Notification of connected transaction regarding rental of property not exceed 3

MDA Q2_2018 (Eng.) August 7, 2018 Subject : Interim Management Discussion and Analysis of Q2/2018 Attention : President of The Stock Exchange of Thailand We attach herewith the financial statements

- Translation - 9 August 2018 Subject: Management’s Discussion and Analysis for the Operating Results of the Second Quarter of 2018 Attention: The President of the Stock Exchange of Thailand Exotic

ZIGA INNOVATION PUBLIC COMPANY LIMITED 999/9,10,11 MOO 9 NAIKLONGBANGPLAKOD, PHASUMUDJADEE, SAMUDPRAKARN 10290 Tel. 02-816-9315 Fax. 02-816-9315 #444 NO. ZIGA 007/2018 9 August 2018 Subject

/2561 August 7, 2018 Subject: Management’s discussion and analysis of the Company’s operating results for Q2/2018 period To: President The Stock Exchange of Thailand DOD Biotech Public Company Limited