Tenneco Automotive (NYSE:TEN), a leading supplier in the automotive original equipment and aftermarket segments, has joined other prominent automotive companies considering a collaborative, web- based, business-to-business initiative focused on the North American automotive aftermarket. This initiative stems from a larger, industry-wide, exploratory project announced by the suppliers in April. Each participating company supports the e-business efforts of its customers, and seeks to realize its own supply-chain management improvements by increasing speed and responsiveness and reducing costs at all levels of the value chain.