Thirteen countries are set to agree on a plan that would double the numbers of tigers in the wild by 2022 by protecting the animals' natural habitats.
A declaration at the first Ministerial Conference on Tiger Conservation, in Thailand's seaside resort of Hua Hin, is due to be approved by officials today and then endorsed by country leaders in September at a meeting in Russia.
But the declaration does not include any new money to finance the programme.
It refers to a commitment from countries to use money from ecotourism, carbon financing and infrastructure projects to help pay for tiger conservation.
The 13 countries attending the meeting are Bangladesh, Bhutan, Cambodia, China, India, Indonesia, Laos, Malaysia, Burma, Nepal, Russia, Thailand and Vietnam.