… northern bleached softwood kraft, a strong fiber that was used to create high-quality paper products. The mill had been run as a cost center for various public companies, and it had … northern bleached softwood kraft, a strong fiber that was used to create high-quality paper products. The mill had been run as a cost center for various public companies, and it had … northern bleached softwood kraft, a strong fiber that was used to create high-quality paper products. The mill had been run as a cost center for various public companies, and it had …