Degussa AG said its Silica, Silanes & Catalysts business will double its manufacturing capacity for aluminum oxides.

Hauthaway Corp. has appointed Pacific Coast Chemicals Co. sales representative in the western United States.

Jotun Paints Inc. announced an expansion program involving the company’s U.S. operations.

Southern Clay Products Inc. has revised the sales-representation territory of Dowd & Guild Inc.

Netzsch Inc. has appointed White Industrial Technologies sales representative.

NL Industries Inc., Houston, said production of chloride-process titanium dioxide resumed in April at the company’s Leverkusen, Germany, TiO₂ plant.

PPG Industries Inc. has presented Bayer Corp.’s Coatings and Colorants Division with an Excellent Supplier Award.

Halox has appointed The M.F. Cachat Co. distributor of Halox’s anticorrosion pigments, tannin stain-blocking pigments and flash-rust inhibitors.

Ciba Specialty Chemicals has completed the global launch of its e-business service.

Dorn Color Inc. has appointed Dowd & Guild Inc. distributor in the western United States.