MINNEAPOLIS — Cargill and CHS Inc. announced they are expanding the scope of their Temco L.L.C. grain export terminal joint venture to include other Pacific Northwest export assets owned by the companies. Temco, which operates an export facility in Tacoma, Wash., is a 50-50 joint venture between CHS and Cargill. The expanded joint venture will include the Tacoma facility along with an export terminal in Kalama, Wash., and the Cargill Irving Elevator at Portland, Ore. The expanded joint venture company will export feed grains, oilseeds and wheat to Asia-Pacific markets.