2013/12/27 We have opened a biodiesel fuel trial campaign page. 2011/04/19 [Environmental Division] The biodiesel business has started operation. 2011/03/11 Environment department page update 2011/02/05 The homepage has been renewed. 2011/01/27 HP renewal schedule 2008/07/01 Acquired greenhouse gas emission credits 2007/05/25 The Yamamori Kogyo website has been renewed.