中国船舶重工集团
One of the DPVs in Chinese service is developed by the Kunming Wuwei Science &amp; Technology Trade Co., Ltd at Kunming, a solely owned subsidiary of Kunming 705th (Research) Institute Science &amp; Technology Development Co. (昆明七零五所科技发展总公司)) at Kunming, which in turn, is a company wholly owned by the 705th Research Institute (headquartered in Xi'an) of the China Shipbuilding Industry Corporation. A total of 4 DPV models have been identified in Chinese naval service: