August 14, 2019 Subject : Management Discussion and Analysis for Six-month and 2nd quarter ended June 30, 2019 Attention : President The Stock Exchange of Thailand 1. Operating Performance 1.1

16 August 2019 Subject: Report of significant resolutions of Board of Directors’ meeting Attention: Director and Manager The Stock Exchange of Thailand (SET) Nation Multimedia Group Public Company

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

-Translation- 1 -Translation- Ref. NCH 033/2018 May 14, 2018 Subject : Management’s Discussion and Analysis 1Q/2018 Attention : President The Stock Exchange of Thailand N.C. Housing Plc. (“the

proportion of the cost of sales to net sales revenues from 51.81% to 48.86% and the improving of gross profit margin which increased from 48.19% to 51.14%. However, the Company still pay attention and monitor

51-E 1/2 RC 51/18 8 August 2018 Subject : Report on the Company’s operating results for the second quarter of the year 2018 Attention : President of the Stock Exchange of Thailand The Board of

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

the Three Month Period (Q2/2018) (Revised 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

1/2 RC 57/18 6 November 2018 Subject : Report on the Company’s operating results for the third quart er of the year 2018 Attention : President of the Stock Exchange of Thailand The Board of Directors