Industrial and commercial bureau. To handle the drowning prevention education base in Dongguan, you need to go to the Industrial and Commercial Bureau for industrial and commercial registration and business license. Dongguan is a prefecture-level city and megacity under the jurisdiction of Guangdong Province. Dongguan is located in the south of China, south-central Guangdong Province, on the east bank of the Pearl River Estuary, with Guangzhou in the northwest, Shenzhen in the south and Huizhou in the northeast.