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In Safety
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"Diamond" as the "Thailand's Most Admired Brand" for roofing Tiles in Construction Materials Group
Thailand Trust Mark
Outstanding Company Performance Awards
Top Corporate Governance Report Awards
"Investors' Choice Award" for AGM Assessment
ESG 100 Certificate
License to display the standard mark on industrial products, TIS

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.

• ISO 9001 : 2008 Quality management system for both factory and office since 2003-15.
• ISO 9001 : 2015 Quality management system for both factory and office since January 1, 2016 being the first manufacturer in the construction material group to receive this new standard, which guarantees that “Diamond” possesses excellent management system with international standard
• OHSAS 18001 : 2007 Occupational health and safety management system since 2005
• ISO 14001 : 2004 Environmental management system since 2009.

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.