SEG Offices USA Office, Headquarters SEG is headquartered in Tulsa, Oklahoma (USA). Most member and nonmember needs are fulfilled by our business office staff in Tulsa. | Physical address 8801 South Yale, Suite 500 Tulsa, OK 74137-3575 United States | | Mailing address PO Box 702740 Tulsa, OK 74170-2740 United States | or by phone +1.918.497.5500, fax +1.918.497.5557, or e-mail. China Office If you reside in China, some of your business needs will be fulfilled by our representative office in Beijing, China. | Physical address SEG China Rm 2501, Bld 5, No. 93 Jianguo Road, Chaoyang Dist. Beijing | | Mailing address SEG China Rm 2501, Bld 5, No. 93 Jianguo Road, Chaoyang Dist. Beijing | or by phone +98610 5820 5048, fax +8610 5820 5047, or e-mail. Find out more about our office in China by visiting our websites in English and Mandarin (中国). Middle East Office If you reside in the Middle East, some of your business needs will be fulfilled by our representative office in Dubai, United Arab Emirates. | Physical address SEG Middle East Dubai Silicon Oasis, Office F-502 Dubai, United Arab Emirates | | Mailing address SEG Middle East P.O. Box 341335 Dubai Silicon Oasis Dubai, United Arab Emirates | or by phone +9714 3724880, or e-mail. Find out more about our Middle East Office. | | |