Tanco Terminals has been a Burns Harbor tenant for a long time, an executive said, and now the company is investing about $8 million into the port. Ports of Indiana-Burns Harbor on Tuesday announced that Tanco Terminals plans to invest $8.2 million to construct an expansion of its liquid tank farm at the harbor. Tanco will add a sixth rail loading truck, a new truck scale, three storage tanks and multimodal transload equipment to handle products by ship, barge, rail and truck.