According to the Draft for Comment: 1. Hong Kong and Macao service providers are allowed to make sole investment in projects of aircraft maintenance, inflight food, air cargo warehousing, parking lot and ground services, and the requirement that a Hong Kong or Macao service provider must pass an economic demand test to obtain a business permit for establishment of a Computer Reservation System joint venture shall be cancelled; 2. foreign merchants are permitted to set up air transportation sales agencies in the form of solely-funded venture in Guangdong, Shanghai, Tianjin and Fujian pilot free trade zones; to establish projects of air cargo warehousing, ground services, inflight food and parking lot in the form of sole-funded venture; and to invest in projects of general aircraft maintenance in the form of contractual or joint venture, and the restriction that general aircraft maintenance with foreign investment shall be controlled by the Chinese side shall be cancelled; and the requirement that foreign merchants investing in aircraft maintenance are obliged to undertake the business in the international maintenance market.