Air-independent propulsion
Non-nuclear AIP submarines
As of 2017, some 10 nations are building AIP submarines with almost 20 nations operating AIP based submarines:

Air-independent propulsion

Section Title: Non-nuclear AIP submarines
Table Section Text: As of 2017, some 10 nations are building AIP submarines with almost 20 nations operating AIP based submarines:

Country	AIP type	Builders	Submarines with AIP	Operators	Numbers with AIP, and notes

Germany	Fuel cell	Siemens-ThyssenKrupp	Dolphin class	Israel	3 active / 2 under construction / 1 on order.

Type 209-1400mod	South Korea Greece Egypt	1 confirmed retrofit with AIP, up to 9 additional Chang Bogo class possibly retrofit.

Type 212	Germany Italy Norway (planned)	8 active (of 10 completed) / 14 planned. Norway plans to procure four submarines based on the Type 212 by 2025.

Type 214	South Korea Greece Portugal Turkey	11 active (of 13 completed) / 2 under construction / 17 planned. Turkish order is being built at Gölcük Naval Shipyard.

Type 218	Singapore	2 on order, with first delivery expected in 2020.

Sweden	Stirling AIP	Kockums	Gotland class	Sweden	3 active / 3 planned.

Västergötland class	All 4 retrofit with AIP. Two eventually became the Archer class. and the other two became the Södermanland class.

Archer class	Singapore	2 active / 2 planned.

Södermanland class	2 active / 4 planned

Japan	Stirling AIP	Kawasaki-Kockums	Harushio class	Japan	1 retrofit: Asashio.

Sōryū class	8 active (of 9 completed) / 3 under construction / 12 planned.

France	MESMA	Naval	Agosta 90B	Pakistan	3 in service

Scorpène	Chile Malaysia Brazil (planned)	4 in service / 19 planned

Spain	Fuel cell	Técnicas Reunidas	S-80 class	Spain	4 under construction / 4 planned

India	Fuel cell	DRDO	Kalvari class	India	All 6 Kalvari-class submarines will be retrofitted with AIP during their first upgrade

Russia	Fuel cell	Rubin Design Bureau NIISET Krylov	Project 677 Лада (Lada)	Russia	Rumoured status: no confirmation that systems are operational on any Russian submarines

Project 1650 Амур (Amur)	None

People's Republic of China	Stirling AIP	711 Research Institute-CSHGC	Type 041 (Yuan class)	People's Republic of China	15 completed and 5 under construction

Type 032 (Qing class)	Experimental submarine

Sentence(s)

Two are in service in Sweden as the Södermanland class, and two others are in service in Singapore as the Archer class.

final_sentence: Two are in service in Sweden as the Södermanland class, and two others are in service in Singapore as the Archer class.