. , ltd . joint venture that currently operates two coated paperboard machines in yanzhou city , china . in december 2006 , a 50% ( 50 % ) interest was acquired in a second joint venture , shandong international paper & sun coated paperboard co. , ltd. , for approximately $ 28 million . this joint venture was formed to construct a third coated paperboard machine , expected to be completed in the first quar- ter of 2009