Below TKMS finally sells 212CDs: 4 for Norwegian Navy, 2 for German drawing from Anonymous kindly provided comments of July 26, 20221:
Poland’s submarine budget (around US$897 million per submarine = US$2.6 Billion / 3 submarines [1] ) is comparable with the price for 6 x German/Norwegian Type 212CDs. (The 6 x Type 212CDs will cost an average US$1.08 Billion each, on the basis of 5.5 billion Euros = US$6.485 Billion (current exchange price) / 6 subs [2]).
This can also be compared with the contract value of 2 x Blekinge-class A26s submarines at around US$475 million each (US$949 million based on 8.2 billion SEK total for 2 subs in 2015 [3])
Are maintenance costs, for example spare parts, included for the Type 212CD purchase? In the earlier purchase of Type 212As for the German Navy, procurement of spare parts was not included in the contract. This led to reliance on cannibalistic maintenance for spare parts.
In contrast, in the case of the 2 x A26s for Sweden, maintenance costs seem to be included.
[1] https://gentleseas.blogspot.com/2021/07/poland-seeking-new-frigates-and.html
[2]https://www.navalnews.com/naval-news/2021/07/tkms-to-build-six-type-212cd-submarines-for-german-and-norwegian-navies/ Worth approx. 5.5 Billion Euros (the order comprises the delivery of two submarines (Type 212CDs) to the German Navy and four to the Norwegian Navy.
[3]https://sv.wikipedia.org/wiki/Blekinge-klass Swedish Minister of Defense Peter Hultqvist announced on 17 March 2015 that the Swedish government had ordered for 2 x A26s from Saab Kockums AB, for a maximum of SEK 8.2 billion.[ “9” https://sverigesradio.se/artikel/6119284 ] . The US$475 million each in 2015 would be substantially more in 2021. In any case US$475 million each is a Swedish Navy only price which would be much higher for potential foreign customers (currently the Netherlands).