West Fraser Timber Co. is planning to add another Alberta sawmill to its suite of Canadian assets. West Fraser already owns half a dozen lumber and plywood mills in Alberta. The company says it has entered into an agreement to buy another one – Spray Lake Sawmills in Cochrane – for $140 million. Spray Lake Sawmills produces treated wood products, dimensional lumber and a wood residuals and biproducts, the company says. It has an annual lumber capacity of 155 million board feet and holds two forest management agreements with the Government of Alberta with a total annual allowable cut of ...