So there are two major "Chinese Zones" in Paris. The first is in the 13th and the most popular, mostly run by the Chinese who were born in Vietnam or Laos, and the second is in Belleville, right next or sometimes known within the "dangerous" areas of Gare de l'Est where the majority of the Northern and subsaharan Africans reside and do business. I quoted "dangerous" because it is what all the Parisians tell me so I heed their warnings and do not go at night - I haven't seen anything dangerous in any of the 10th, 11th, 19th, or 20th - Belleville is the centre of where these arrondisements/districts meet. Indeed, this area is known for its cheap rent for immigrants and the working class. I'm not saying that this area isn't dangerous (in Jan 2014 a ton of prostitutes were arrested in the Chinatown there) but it's quite busy during the day and brimming in colour from the graffitis on the walls and the colour of the people so you kinda grow into invisibility amongst the crowd - whether you think that's dangerous or not is to each's interpretation. I did go there on a Sunday and there are a TON of prostitutes there. A little creepy....
I do like the grocery stores here in comparison to the 13th, as there are more Chinese things such as frozen dumplings for boil.
Anyway, the Chinatown in Belleville sprouted in the 1980s, stemming from by the large population of WenZhou, China immigrants. In 2000, according to this webpage on Chinese immigrants, there were 130 thousand Chinese people from WenZhou in Paris:
所以從1990年代開始，溫州人把經濟活動向巴黎的美麗城街（Rue de Belleville）開闢一個新的溫州人經濟活動區。美麗城街位於巴黎十區、十一區和十九區的交會處，原來是阿拉伯移民聚集區，屬於巴黎有名的落後貧窮地區，社會秩序相當混亂。Starting from 1990s, the immigrants from Wenzhou, China moved their economic activities towards Paris's Belleville, to open a new economic activity centre for them. Belleville is the intersection of 10th, 11th, and 19th district of Paris, originally an immigrant centre for the Arabs, belonging to infamous Parisian high-poverty neighbourhood, full of social problems .
According to http://www.rendezvousfrance.com/chine.html
In the mid 1980's, another Chinatown sprouted in another part of Paris: Belleville, in the northeastern section of the city. Belleville, which was the home of Edith Piaf and Maurice Chevalier, has been for the longest time the neighborhood where new immigrants would settle. You can still find Jewish tailors and Armenian shoemakers; more recently, Arabs and Africans moved in. In the summer, rue Rebeval feels like Cholon, the Chinese open air market in Saigon.And there are quite a number of chinese grocery stores here, opened by the Chinese from WenZhou. Some of which are opened on Sundays and closed on Mondays (although the laws keep changing).