Apple has long been trying to woo the Chinese market, its second-largest after the US, even going as far as making compromises it would not even consider doing for any other region.
https://www.slashgear.com/apple-sued-in-china-for-1-4-billion-of-siri-patent-infringement-03631799/
https://www.slashgear.com/apple-sued-in-china-for-1-4-billion-of-siri-patent-infringement-03631799/