Singapore-based Petra Food Pte has signed a joint-venture agreement with SD Holdings (SDH), a wholly-owned subsidiary of conglomerate Sime Darby Bhd, and SDH's wholly-owned subsidiary Sime Confectionery (SCSB) to produce and market chocolate goods. Under the terms of the deal, Petra Food will give SCSB the technical assistance to manufacture chocolate confectionery products with the intellectual property rights of Delfi Chocolate Manufacturing.