% compared with the same period of the previous year To: The President The Stock Exchange of Thailand As a result of the global economic contraction and the economy of Thailand in 2018, there is a slowdown to

-Translation- 1 -Translation- Ref. NCH 022/2019 May 13, 2019 Subject : Management’s Discussion and Analysis 1Q/2019 Attention : President The Stock Exchange of Thailand N.C. Housing Plc. (“the

No No. CC20190505ELE May 14, 2019 Re: Clarification of the changes in operation performance for the first quarter ended 31 March 2019 Attn: The President The Stock Exchange of Thailand Cal-Comp

NO. OMD011/2562 15 May 2019 Re Explanation and analysis of the Management for the 1st quarter of 2019 ended 31 March 2019 To Director and Manager, Stock Exchange of Thailand Whereas the Meeting No. 2

previous Quarterly To: The President The Stock Exchange of Thailand As a result of the trade war, both the United States and China have pulled the world economy down sharply and may cause a recession in the

No. OMD 013/2562 13 August 2019 Re Explanation and analysis of the Management for the 2nd. quarter of 2019 ended 30 June 2019 To Director and Manager, Stock Exchange of Thailand Whereas the Meeting

Period (Q1/2018) Attention: Directors and Manager, The Stock Exchange of Thailand N.D. Rubber Public Company Limited (“the Company”) would like to present the MD&A for the Three Month period ended 31 March

Period (Q1/2018) (Revise No.1) Attention: Directors and Manager, The Stock Exchange of Thailand N.D. Rubber Public Company Limited (“the Company”) would like to present the MD&A for the Three Month period

9 August, 2018 Re Explanation and analysis of the Management for the 2nd. quarter of 2018 ended 30 June 2018 To Director and Manager, Stock Exchange of Thailand Whereas the Meeting No. 4/2561 of the

Three Month Period (Q2/2018) Attention: Directors and Manager, The Stock Exchange of Thailand N.D. Rubber Public Company Limited (“the Company”) would like to present the MD&A for the Three Month period