Huawei 'extremely disappointed' with NBN ban Ban upheld: Huawei is still not allowed to participate in Australia's NBN. Photo: Bloomberg Huawei has finally broken its silence after the Coalition government decided to uphold the ban on the Chinese telecom giant participating in the national broadband network, saying the company is ""extremely disappointed"." John Lord, the chairman of Huawei Australia and a former Royal Australian Navy admiral told the company's staff to hold their heads up high and be ""proud to be Huawei"." Mr Lord's letter to staff came after Prime Minister Tony Abbott categorically shut down the speculation that Canberra was going to relax the previous government's ban on Huawei. ""While much of this week's commentary has focused on cyber security,"" he said in a letter to all staff. ""I want to make it crystal clear that Huawei has never been presented with any evidence that our company or technology poses any kind of security risk."" The former fleet commander played down the importance of the NBN to Huawei's business operation. ""Despite the NBN decision, last year was our most successful year to date and today's Huawei's Australian business is bigger than ever."" Huawei Australia more than doubled its revenue in Australia last year and earned $368 million, a 61 per cent increase from the previous year. It has secured major contracts from major telcos including a contract to build part of Optus" superfast 4G network. Mr Lord reiterated the company offer to reveal its technology and source codes to be verified by Australian security agencies. However, Huawei's offer has so far been ignored by both the Coalition and Labor governments. ""That position still stands--we have nothing to hide, and we have complete confidence in the veracity of our equipment,"" he said, ""we have always understood that the bar is set higher for Huawei and because of that we are willing to go further than any other vendor to prove our security credentials."" He described Canberra's decision to ban Huawei was ""the exception, not the rule."" Huawei is building eight out nine NBNs around the world including Britain's, a close ally of Australia and the United States. ""These countries have not embraced Huawei cautiously, they have embraced us with open arms,"" said Mr Lord. Huawei established a cyber-security centre in Britain after it was awarded a large contract to supply equipment to the British equivalent of the NBN. It is staffed with security cleared personnel, some of whom used to work for Britain's signals intelligence agency, GCHQ The Chinese telco giant also appointed John Suffolk, the former chief information officer of the British government to be the head of its global cyber security operation. Huawei's charm offensive in Britain seems to have paid off. UK Chancellor George Osborne met Huawei's chief executive officer Ren Zhengfei, a former Chinese army engineer in China during his recent visit and welcomed a further $2.2 billion of investment from Huawei. ""There are some Western governments that have blocked Huawei from making investments,"" Mr Osborne reportedly said, ""not Britain, quite the opposite.""