Due to the general bankruptcy of the company's largest customer, the component supplier Tenneco's business volume has dropped by 20%. Recently, Tenneco announced that the company will adopt a diversified development strategy in the future. Tenneker Japan executive Jeff Jarrel said Tenneco plans to increase the proportion of Japanese customers’ sales from the current 10% to 30%. As part of its diversified development strategy, Tenneco also plans to develop diesel engines for commercial vehicles and off-road vehicles. Jeff Jarrel stated that the globally applied environment-friendly standards for high-demand commercial vehicles have brought good sales opportunities to the company's exhaust gas cleaning system products. It is expected that by 2013, the company’s commercial vehicle business will account for 30% of the company’s total revenue. With the continuous penetration of Japanese cars in markets such as China, India, and Thailand, as well as the prospects for the development of construction machinery and commercial vehicle markets in Asia, Tenneco has great confidence in its future development. Tenneco previously stated that the company’s sales revenue in 2008 was US$5.9 billion, a decrease of 4.3% year-on-year, and the amount of Japanese orders in that year also dropped from US$200 million in 2007 to US$65 million.