Hangzhou is a provincial capital (Zhejiang province) located about halfway between Beijing and Taiwan. The province borders the sea.
A story published by Canada's CBC News says that Chu's cartoons, banned ten years ago, resonate with mainland readers because they depict stories they can relate to.
They portray family issues — not political ones — such as parental pressure and generational clashes, which have become more marked as China modernized and a new class of white-collar workers came to the fore.
"[The urban workers] see in my cartoons their own stories … people who are struggling with the same family and marriage problems as they themselves are," notes Chu.
In a China Post story we learn that Chu's cartoons have been made into Chinese stage shows or TV series and that "Chu has become a household name on the mainland".
A Taipei Times story notes that the deal was signed in late April.