The Chinese chip companies recently placed on a sanctions list by the United States do not expect their business to be significantly affected. Empyrean, a company specializing in software for semiconductor development, announced on Tuesday that it intends to accelerate the process of cutting its ties with foreign suppliers. Jiangsu Nata Opto-Electronic Materials, a supplier of basic materials for chip production, emphasized that its material stocks were well-filled and that it would find domestic replacements for foreign suppliers.