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(GRIMAT)

Business scope：Structural Nonferrous Metal Materials, Electronic Materials, Energy-related Materials, Processing Technologies and Equipment

Telephone：010-60662811

Fax:010-60662898

(CUTC)

Business scope:Chemical Composition Analysis, Microstructure Analysis, Mechanical Property Testing, Physical & Chemical Property Testing

Telephone：010-61681168-8108

Fax:010-61681168-8121

Website:www.cutc.net

(GRIAM) Shares listed on Shanghai Stock Exchange, stock symbol 600206

Business scope:High-Purity Sputtering Targets for Integrated Circuit, Evaporation Materials, Precious Metal Materials, Rare Earth Metal, Optical (IR) Materials, Orthodontic Materials and Related Products

Telephone010-62369559

(GRITEK)

Business scope:Semiconductor Silicon Polished Wafers and Epitaxial Wafers, Large Diameter CZ Silicon Monocrystalline Ingot, FZ Silicon Monocrystal Ingot and Polished Wafers, Silicon Rings and Silicon Electrode

Telephone：010-82087088

Business scope: VC/PE in Advanced Materials

Telephone：010-82250230

Business scope:Facilities Management, Science Park Business Services

Telephone：010-82241703