It also failed to show what China calls "Southern Tibet" - a huge swathe of territory it claims in the northeast Indian state of Arunachal Pradesh - and failed to draw a line around China's territorial claims in the South China Sea.
The government of Chinese President Xi Jinping has been increasingly assertive about its claims to Taiwan, which Beijing regards as a renegade province and has threatened use military force to bring under its control.
"We sincerely apologize for this unintentional error", it said, adding that an internal inspection is being conducted to correct the mistake".
I can't imagine that, as a graphic designer for U.S. clothing giant Gap, you would have ever anticipated that part of your job would require officially apologising to the nation of China thanks to an global upset you caused with one of your shitty shirt designs.
"The GAP Group respects China's sovereignty and territorial integrity", the company added in its statement.
Gap announced that it stopped offering the T-shirts in question for the Chinese market and had them destroyed.
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But the order was not obeyed, leading to Tamil Nadu government preferring a contempt petition against the Union government. Mr Palaniswamy further said that former Chief Minister Jayalalitha had taken effective and serious steps on the issue.
The People's Daily, official newspaper of the Chinese Communist Party, reports that the T-shirt had been sold in Canada.
This year, China has cracked down on worldwide companies to reinforce the "One China" policy.
This move sparked a counter backlash by those online who argue that Taiwan is not a part of China and that the complaints over the shirt are unwarranted. "China's efforts to export its censorship and political correctness to Americans and the rest of the free world will be resisted". In the South China Sea, China is engaged in a number of disputes over islands, coral reefs, and lagoons in what is a major commercial thoroughfare that is potentially rich in resources.
Beijing has been pressuring several dozen airlines to list Taiwan, Macau and Hong Kong as part of China in their informational materials - and now that Air Canada, for one, has chose to list the Taiwanese capital Taipei as part of China on its booking materials, Taiwan is requesting a "speedy correction" in turn. Mercedes-Benz said sorry for quoting the Dalai Lama on social media. But Gap's China headquarters in Shanghai said the T-shirt had not been released in China.
The T-shirt was part of the Gap's city T-shirt in Jersey edition, which also includes shirts featuring Canada, Japan, Paris, San Francisco, and NY.
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