WATER TRANSMISSION GROUP TUBULAR PRODUCTS GROUP Northwest Pipe is the leading supplier of steel, high-pressure water transmission pipe in the United States.  These products are used to extend, upgrade or replace public water systems. The Company’s Water Transmission Group operates six manufacturing facilities throughout the country. The plants have the capabilities to produce  complex piping assemblies for water, waste water treatment, and power generation applications. They are  positioned to provide fully engineered systems anywhere in North America. The Company is also active in  international business development activities. The Group manufactures pipe from 4.5 inches to 156 inches in diameter. Their full service facilities offer  a broad range of linings and coatings. All facilities are capable of manufacturing to national standards and  custom specifications. One prominent water project completed in 2003 is the Mni Wiconi Core Pipeline job in South Dakota,  in which the Company provided more than 35 miles of 24-inch diameter pipe for the Ogallala Sioux Rural  Water System. In another project, for Tacoma Public Utilities in Washington State, the Company provided  45,000 feet of pipe and fabricated fittings in several size and gauge configurations.  The Water Transmission Group also produces welded steel products for a wide variety of structural  and industrial applications. In 2003, the Company provided 40,000 feet of 42 ″ x .750 ″ piling products  to the Minnesota Department of Transportation for construction of the Wakota Bridge spanning the  Mississippi River.  The Tubular Products Group serves several markets throughout North America. Manufactured using electric resistance welded (ERW) processes, the Company’s pipe and tubing products range in sizes from 0.5 inch to  16 inches in diameter. The Company’s standard pipe products are used in construction and industrial applications. EZ-FLOW TM and FLAME-OUT TM fire sprinkler products are in service in fire protection systems across the country. Other pipe products meet the needs of agricultural equipment manufacturers and are used in a range of structural  applications. Energy products include pipe for oil and natural gas exploration and production. These products  are sold in the western U.S. and Canada. Innovative traffic sign post systems that contribute to improved highway safety are marketed to federal, state,  and local transportation departments. Pozitube TM and Lifecoat TM , the Company’s galvanized steel fence  framework products, provide strength and durability to chain link and ornamental fence systems. They are  sold via distributors throughout the central and eastern U.S.  The Tubular Products Group has a strong presence in the mechanical tubing markets in the Southwest. These products are used to manufacture a variety of items, from school furniture and exercise equipment to scaffolding and display racks. Thompson Tanks, the Company’s tank manufacturing operations, produces aboveground and underground  liquid propane storage tanks and elliptical heads for residential, commercial, and industrial applications. 4