The Xuelong 2 Polar Research Vessel is China's first independently built polar scientific research icebreaker, which was delivered in July 2019 for use. Xuelong 2 is the world's first polar scientific research icebreaker that adopts two-way icebreaking technology at the bow and stern, and is capable of continuous icebreaking voyage in 1.5-metre-thick ice environment, which fills the gap of China in the field of major equipment for polar scientific research. HUJI provides exclusive air-conditioning equipment for the ship's living compartment, equipment compartment and experimental compartment.

"Dongfanghong 3 is a new generation of scientific research internship ship developed by China's independent innovation and research, the first domestic and the fourth international comprehensive marine research vessel to obtain the SILENT-R certificate, and the world's largest marine research vessel with the largest displacement to obtain this level of certificate, as well as the world's largest silent scientific research vessel. HUJI supplied low-noise air purification and air-conditioning equipment for this vessel.

Chenghai 1-1 platform is a modern platform for mining and repairing, and HUJI provides cold storage, air conditioner, air damper and other equipments for the living building of its EPC project.

Three Gorges of Yangtze River 1 is the world's first new energy pure electric cruise ship adopting high-voltage charging + low-voltage replenishment, and is the first pure electric cruise ship in China. Numerous equipments and systems are the first developed and applied in the electric boat industry, effectively filling the gaps of many technical research applications in the field of electric cruise ships. HUJI has customised its exclusive high-voltage DC inverter central air-conditioning system, which improves the comfort of the passengers and greatly saves power loss at the same time.

The marine boat is mainly used for maritime supervision and maritime patrol in offshore waters. HUJI provides modular chiller units, fresh air units, fan coils and other equipment for them.

The entry of the maritime surveillance vessels further enhanced the level of equipment for rights protection and law enforcement, strengthened marine environmental protection, comprehensive improvement of sea areas and islands, and increased the supervision and law enforcement of ecological environmental protection in key sea areas. HJSC provides air-conditioners, pressure setting devices and other equipment for it.

YD Roll-on Roll-off (RORO) is a luxury operating vessel for a certain route, mainly used for carrying passengers, cargo and vehicles. HUJI customised the air-conditioning system and fire damper equipment for it.