Cambodia–Laos–Vietnam Development Triangle Area
trilateral cooperation initiative
The Cambodia–Laos–Vietnam Development Triangle Area (CLV-DTA; Khmer: តំបន់ត្រីកោណអភិវឌ្ឍន៍ កម្ពុជា–ឡាវ–វៀតណាម; Vietnamese: Tam giác phát triển Việt Nam - Lào - Campuchia) was a growth triangle in the southern part of the Greater Mekong Subregion. The cooperation initiative was initiated in 1999 by the leaders of Cambodia, Laos and Vietnam and formalized in 2004 during the 10th ASEAN Summit in Vientiane.
It aimed to strengthen trilateral cooperation, promote stability and security, reduce poverty and foster socio-economic growth and development of the border regions of the three countries through transportation infrastructure and the promotion of trade, as well as the prevention of natural resource and cross-border crimes.
The CLV-DTA comprised 13 border provinces within the three countries of which four (Ratanakiri, Stung Treng, Kratié and Mondulkiri) are in Cambodia, four (Attapeu, Salavan, Sekong and Champasak) in Laos and five (Kon Tum, Đắk Lắk, Gia Lai, Đắk Nông and Bình Phước) in Vietnam.
Vietnamese businesses have taken the lead in making investments in the triangle area. Since the inauguration of the CLV-DTA, Vietnamese investors have invested in 110 projects worth US$3.7 billion.
The three countries held a ministerial meeting at least annually and a prime ministerial meeting every two years.
In September 2024, Cambodia withdrew from the agreement.
History
On 20 October 1999, the three prime ministers Hun Sen (Cambodia), Sisavath Keobounphanh (Laos) and Phan Văn Khải (Vietnam) held the first unofficial summit in Vientiane and reached an agreement on building a "Development Triangle".
After the third unofficial summit on 20–21 July 2004 in Siem Reap, the three prime ministers Hun Sen, Bounnhang Vorachit and Phan Văn Khải met at Vientiane and declared the establishment of the CLV-DTA. Originally, the development triangle covered 10 border provinces: Mondulkiri, Ratanakiri and Stung Treng of Cambodia, Attapeu, Salavan and Sekong of Laos and Đắk Lắk, Đắk Nông, Gia Lai and Kon Tum of Vietnam.
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