This call for makers might interest some OSHUG members: 

It a residency programme for UK makers to go to Shenzhen (arguably the electronics manufacturing capital of the world). All info here: http://creativeconomy.britishcouncil.org/blog/16/12/16/calling-all-uk-makers-opportunity-travel-shenzhen/

One of the residency is with Makeblock to prototype a kit with their team. I have visited their office in Shenzhen, it's pretty much a mini-Legoland for hardware makers. Other residencies are around maker education, sustainability, 3D Printing etc. 

And generally this city is worth a trip to source components or discover how the Shanzhai ecosystem works, that said don't go there if you can't stand air pollution! 

cheers

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Marc