China, which signed a $3 billion currency swap deal with Belarus in 2009 to boost trade, agreed to finance the venture with low-interest loans as long as half t

China, which signed a $3 billion currency swap deal with Belarus in 2009 to boost trade, agreed to finance the venture with low-interest loans as long as half the money is spent on Chinese materials... Can someone explain the four-year planning of the currency swap related to the actual build-out? Or am I seeing something of insignificance related to the whole of the article?