The fourth meeting between Straits Exchange Foundation (SEF) Chairman Chiang Pin-kung (江丙坤) and Association for Relations Across the Taiwan Strait (ARATS) Chairman Chen Yunlin (陳雲林) focused on four issues: cooperation on standardizing inspections and certification; quarantine and inspection of agricultural products; avoidance of double taxation and cooperation on fishery labor affairs. These issues, in addition to the memorandum of understanding on financial supervision and management, as well as the opening up of Chinese investment in Taiwan, were designed to establish a single China market with the ultimate goal of unification.