The company's major shareholder is King Vajiralongkorn, which owns 30 percent of Siam Cement's shares.

[2]: 11  In 2016, SCG was ranked No.1 of the top graduate employer in Thailand polled by Asia Internship Program.

[6] SCG was founded to set up the first cement plant in Bangkok, Thailand by a royal decree of King Rama VI (Vajiravudh) in 1913.

[10] In 2014, SCG Chemicals acquired 51 percent of Norner[11] for developing plastic and polymer technology.

[13] The Siam Cement Group is sponsor of football, badminton, and golf events in Thailand and Southeast Asia.