
China Electronics Engineering Design Institute

Pörner Ingenieurgesellschaft mbHWien, Austria

LeviatSheffield, United Kingdom

The Austin Co.Ohio, United States

Shanghai Shenjie Environment Protection Sci & Tech Co., Ltd.Shanghai Shi, China

Gypsum Technologies, Inc.Ontario, Canada

Gammon Construction Ltd.Kowloon, Hong Kong

Noggerath GmbH & Co. KG

Hunan Baili Engineering Science & Technology Co., Ltd.Hunan Sheng, China

Markram, Inc.South Africa

Senox Corp.

SCHAEFER KALK GmbH & Co. KGRheinland-Pfalz, Germany