Its core product was H5OS, a web-centric operating system that was primarily based on the open web standard HTML5.

It was derived from Firefox OS, whose development company founder Li Gong had overseen as president of Mozilla Corporation.

[1][3] Acadine Technologies was founded on March 25, 2015,[2] and was based in Hong Kong with operations in Beijing, Taipei, Palo Alto, and London.

[5] When Mozilla announced in December 2015 that it would cease its efforts to partner with mobile carriers to use Firefox OS on smartphones, it was reported that Acadine would take over this mission with H5OS.

[1] On April 27, 2016, it was reported that the funds from Tsinghua Unigroup were not being transferred and Acadine started a reorganization.