The Siam Gypsum Industry (SGI) was established in July 1982 to manufacture and supply gypsum wall and ceiling solutions. It categorizes Elephant Gypsum Board products into 6 categories: gypsum boards, gypsum tiles, metal profiles, gypsum compounds, gypsum partition systems, and accessories for walls and ceilings. In 2021, Elephant Gypsum Board changed its main shareholders and entered into a joint venture with Knauf, the world's leading building materials company, and Siam Cement Group (SCG), the leading innovative construction materials and chemicals company in Thailand.

Ethics and fairness must be the guiding principles of good business practice. As a result, the company at all levels adhere to and practice the four values listed below:

1. Menschlichkeit   By treating each other fairly and by embracing diversity, together we act with social responsibility.

2. Partnership  We work to create an environment of mutual trust. We are one team. We are loyal.

3. Commitment We are committed to work, our colleagues and our community. We always go the extra miles.

4. Entrepreneurship We take the initiative and leave our marks. We consider the consequences but dare to take risks.