Mar 20, 2009. /Lesprom Network/. Neiman Enterprises will curtail production at its Spearfish, S.D., sawmill the week of March 23 and its sawmill in Hulett, Wyo., will be down the week of March 30, as Random Lengths informed Lesprom Network. The company cited equipment upgrades and market conditions. Neiman Enterprises is a group of family-owned and operated sawmills manufacturing and re-manufacturing ponderosa pine lumber. The companies three production facilities produce a variety of primary and secondary wood products, including boards, dimension lumber, decking and wood shavings.