It was launched by World Wildlife Foundation (WWF) at the 2010 St Petersburg Tiger Summit held in Russia.

• Under it, 13 tiger range countries had agreed to double the world tiger population by 2022, which is the year of tiger in Chinese calendar.
• These 13 countries are Bangladesh, Bhutan, Cambodia, China, India, Indonesia, Lao PDR, Malaysia, Myanmar, Nepal, Russia, Thailand and Vietnam.
• Nepal becomes first country in the world to double its tiger population in a decade as part of  World Wildlife Foundation’s (WWF) ‘Tx2’ programme.