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Huawei: Chinese tech giant with big ambitions

4 December 2012 Last updated at 22:53 GMT

One of the biggest names in Chinese industry, Huawei, is a hi-tech giant, employing tens of thousands of highly-skilled engineers.

But in the US, the telecoms firm is widely regarded with suspicion and seen by some as an agent of China's Communist Party.

The BBC's Rory Cellan-Jones travelled to China to find out more about the company and to meet its senior director in Shenzhen.