With two 5-ton deep Chiwan deep berths in operation, Dongguan can accommodate ships of large tonnage carried into the territory of fertilizer, chemical fertilizer to meet the needs of agriculture on the mainland. Into the spring season, the maritime sector for the agricultural Dongguan ship opened green channel.
February 18, in Dongguan, Shenzhen Chiwan Wharf, a Panamanian about 120 m outer "TIAN WANG XING" being robbed unloading fertilizer. According to Jiang Shaojun, Dongguan Mayong introduced by the Director of Marine, in order for production of fertilizers and other essential items as soon as spring arrives in the hands of farmers, opened a green channel for the maritime sector, agricultural transport ship bright "green light", the "double first", that the visa priority to give priority to security. Meanwhile, the maritime sector by high frequency radio (VHF), Automatic Identification System (AIS) to implement effective monitoring and timely broadcast to ships and other warnings about the fog, marine patrol boats out on the deep-water wharf apron Chiwan dynamically carried out, cruise, clear navigation obstruction of small fishing boats, fish boats and protect the smooth fairway and out of Hong Kong, and the proposed escort visa appointment Dao escort ship priority and so on.