Oman Cement Company (SAOG) was formed in 1978.  

Rusayl Cement plant was completed in 1983 with an annual integrated cement production capacity of 624,000 tons, of Ordinary Portland Cement and Sulphate Resistent Cement. In 1999 clinkering capacity expanded to a total of 1.2 million MTs per annum. The second production line came on stream in mid 1998. Presently the company is working on expanding the capacity of plant form 1.26 MTS per annum to 1.70 MTS per annum by upgrading production line No. 1 and No. 2     

Basic raw material quarries representing 98% of the raw mix viz. Limestone and Silica deposits, are in abundance in the pant's vicinity to last over 100 years.

The Company's shares are listed in the Muscat Securities Market as well as the Bahrain Stock Exchange.