Weyerhaeuser Company says it will sell a treated utility pole plant in De Queen because the mill is not part of the company`s core function. But Weyerhaeuser says the plant is well run, has good workers and has a solid market. The company says it expects to find an eager buyer. The southwest Arkansas plant has 45 workers -- 37 in hourly jobs and eight on salary. The average experience among workers at the plant is 17 years. The mill takes poles, which are generally straight and delimbed, and treats them for further use so they can withstand the weather`s wear and tear. Weyerhaeuser bought the plant in 1969 as part of the acquisition of Dierks Forests and built the current facility in 1987.