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Four businesses have products on the Architecture Van Brandenburg-designed Marisfrolg building in Shenzhen.
Damien van Brandenburg said from China this week the collaborations with the architecture firm showed Dunedin's strength as a city from which to base international projects.
The businesses have provided everything from tile prototypes to door handles for the building.
''All of them have delivered at such a high level, it's been perfectly suitable for what we're wanting to do.
''It's just an example of how Dunedin is such a great city to operate out of, to do business internationally.
''It's a city that's a size we can get everything we need in terms of resources without being caught out with big city issues, such as sitting in traffic for hours.''
The building - the 120,000sqm headquarters of Marisfrolg, one of China's leading high-end fashion labels - was 75% built.
While the contract was not high volume, it was ''relatively high value because of the amount of finishing required''.
''Everybody likes to be involved in something new that looks flash.''
Elise Johnston, of Three Cups of Tea ceramics, said Architecture Van Brandenburg wanted some unusually shaped window surrounds for the building, which were made using plaster moulds from 3-D prints.
For the small-scale ceramics firm it was ''fantastic to be involved ... we were absolutely stoked.''
The company did not manufacture the parts - they were made in China.
''We do a lot of the prototyping and proof of concept and component development.
While it was a smaller job financially, it was creative work, and supported a local designer.''
Port Chalmers ceramicist Tina Grubba said she was approached to make prototypes of tiles for the building.
There was a period of collaboration while options for the triangular terracotta tiles were explored and tried.
They were sent to China, returned, and ''tweaked till we got them right''.
There were thousands of copies of the tiles on the building.
The job, ''for a change'' earned her a reasonable hourly rate for her work.