An autonomous firm of consulting architects and engineers; established in 1975 Sigma today is a leading engineering consultancy firm not just in Jordan but among the largest engineering-consulting firms in the region Sigma Consulting Engineers Sulaiman Al-Nabulsi St. P.O. Box 20076 Amman 11118, Jordan Tel: + 962 6 5661031, 5680579 Fax + 962 6 5678320
The Arab Potash Company () is a pan Arab company formed in 1956 and was given a concession from the Government of the Hashemite Kingdom of Jordan to exploit, manufacture and market the resources of the Dead Sea for 100 years is one of the world's leaders in producing Potassium Chloride (MOP) / Fertilizer grade (2 million MTPY) and Industrial grade Potash Tel + 962 6 5674376 …