Industrial Standard Certifications

The Company has received certifications from TUV NORD Thailand Co., Ltd and certified body from TUV NORD of Germany, which guarantees that the Company's production process has good environmental management system. The Company has already received following three industrial standards and certifications.

Other Standard Certifications and Awards can be summarized as follows:

• Year 2005	Received the Thai Industrial Standard (TIS) from the Thai Industrial Standards Institute, Ministry of Industry
• Year 2007	Received the Safety Award on excellent reduction of accidents from the Department of Labor Protection and Welfare, Ministry of Labor and Social Welfare
• Year 2008-14	Received the Distinguished Enterprise Award in labor relation and welfare from the Ministry of Labor and in 2012, received from the Department of Labor Protection and Welfare, Saraburi Province
• Year 2009	Received the Distinguished Thailand Brand from Department of Export Promotion, Ministry of Commerce
• Year 2009	Received the Distinguished Regional Enterprise Award in Safety from the Ministry of Labor
• Year 2010	Received the "White Factory" Award (Drug Prevention) from the Labor Protection and Welfare Office of Saraburi Province
• Year 2011-12	Received the "5S Award Model 2011" certificate at the Thailand 5S Award Event, from the Technology Promotion Association (Thai-Japanese) for the office area, Accounting and Finance Division, Logistics and Customer Service and Warehouse
• Year 2012	The Company was placed as Number 1 Brand "Diamond" as the most admired brand for roofing tiles in the construction materials category from the "Thailand's Most Admired Brand 2012" ranking in the January 2012 issue of Brand Age Magazine
• Year 2012	Received a quality symbol, "Thailand Trust Mark" from the Department of International Trade Promotion (DITP), Ministry of Commerce, a guarantee of excellent quality product from Thailand, which will add value to the product, build strong market opportunity and increase consumer confidence in year 2012
• Year 2012	Received "Outstanding Company Performance Awards" from the "SET Awards 2012" on November 22, 2012, organized by the Stock Exchange of Thailand in cooperation with Money & Banking Magazine
• Year 2013	Received "Top Corporate Governance Report Awards" from the"SET Awards 2013" on November 20, 2013, organized by the Stock Exchange of Thailand in cooperation with Money & Banking Magazine
• Year 2014	The Company was placed in the "Very Good" group with a four-star award ()for assessment of Corporate Governance and received score of 86 percent in the Top Quartile level in the group of companies with market capitalization of Baht 3,000 to 9,900 million, due to the adjustment of assessment criteria and scoring to be in line with the ASEAN CG Scorecard.
• Year 2014	Received "Investor's Choice Award" from the Thai Investors Association (TIA) of the AGM assessment on September 25, 2014 with 100 full score for the 4th consecutive years from 2011 to 2014.
• Year 2010-2013 and 2015	The Company was placed in the “Excellent” group with a five-star award () for assessment of Corporate Governance and received score of 95 percent in the Top Quartile level in the group of companies with market capitalization of Baht 3,000 to 9,999 million.
• Year 2015	On June 22, 2015, the Company was placed among 100 listed companies by the Thaipat Institute, receiving the ESG 100 Certificate for having outstanding environmental, social and governance.
• Year 2015	On July 14, 2015, the Company received permission for displaying the Thai Industrial Standard (TIS) Logo, TIS 535-2556 and TIS 2619-2556 on the products including concrete tiles for both CT Diamond, Adamas and Concrete Ridges from the Thai Industrial Standards Institute. The Company was the first concrete roofing tiles producer to receive such TIS Logo, which guarantees that its products have international standard.
• Year 2015	On November 25, 2015, the Company received the Thai Labor Standard (TLS 8001:2010) Basic Level Certification from the Department of Labor Protection and Welfare, Ministry of Labor, to certify that the Company conducts its business with social responsibility standard of Thai business in accordance with the laws relating to labor relations, occupational safety, health and environment.
• Year 2015	The Company received the Certificate of Honor for blood donation as an organization from the Thai Red Cross Society.
• Year 2018	Received the Honorary Plaque - Highly Energy Efficient Product Label for “Roof tiles and Autoclaved Aerated Concrete” from Department of Alternative Energy Development and Efficiency.
• Year 2018	Received the Certification from the Securities and Exchange Commission for participating “Happy Retirement Company”.
• Year 2018	Received the “Green System Level 3” certification from Department of Industrial Works for systematic environmental management with continual assessment and revision.
• Year 2022	Thailand Sustainability Investment (THSI) Award of the year 2022 for the Six consecutive years since 2017 from the Stock Exchange of Thailand and Money and Banking Magazine for listed companies that conduct their business with stability and sustainability with regards to Environment, Society, and Governance or “ESG”. Five-star Award () from the project of the Corporate Governance Assessment of Thai Listed Companies year 2022 organized by the Thai Institute of Directors Association, with a score of 92%, which is rated as Excellent and presented with the Top Quartile ranking award in the market with a stock value of 3,000. -9,999 million baht. Five-star Award () in the quality assessment of the year 2022 convening of the Annual General Meeting of Shareholders from the Thai Investors Association with a score of 100%, which is rated as Excellent. In the ESG 100 award, the Company was selected as one of the ESG 100 security groups with distinct performance in the environment, society, and governance (ESG) from evaluation of the year 2022 Listed Securities Assessment companies organized by Thaipat Institute. The first award was presented in the year 2015 and has continued in the year 2019 until the year 2022. Award for “Environmental Governance Project” for building and developing an environmentally friendly industrial network of Khon Kaen Provincial Industrial Office. It is one of the five industrial factories in Khon Kaen that passed the environmental governance assessment criteria from the Ministry of Industry, Khon Kaen Province on July 7, 2022
• Year 2023	Thailand Sustainability Investment (THSI) Award For the 7th consecutive year, spanning from 2017 and also in year 2023, the Stock Exchange changed its name from THSI to SET ESG Ratings. During this period, the company consistently maintained an AA rating in the real estate and construction sector. from the Stock Exchange of Thailand and Money and Banking Magazine for listed companies that conduct their business with stability and sustainability with regards to Environment, Society, and Governance or “ESG” Five-star Award () from the project of the Corporate Governance Assessment of Thai Listed Companies year 2023 organized by the Thai Institute of Directors Association, with a score of 101%, which is rated as Excellent and presented with the Top Quartile ranking award in the market with a stock value of 3,000. -9,999 million baht. Four-star Award () in the quality assessment of the year 2023 convening of the Annual General Meeting of Shareholders from the Thai Investors Association with a score of 99%, which is rated as Very Good. In the ESG 100 award, the Company was selected as one of the ESG 100 security groups with distinct performance in the environment, society, and governance (ESG) from evaluation of the year 2023 Listed Securities Assessment companies organized by Thaipat Institute. The first award was presented in the year 2015 and has continued in the year 2019 until the year 2023.