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Thailand's US$20 billion pipeline involves 12 projects to be approved by the PPP Committee this year.

The projects marks the highest level of joint investment since the Joint Public-Private Partnership Act was enacted in 1992.

Chanvit Nakburee, deputy director of the State Enterprise Policy Office (SEPO), stated that of the 12 projects, five have between US$30 - US$140 million of investment each. These projects, with a total investment of US$260 million, comprise two motorways linking Ayutthaya's Bang Pa-in district with Nakhon Ratchasima and Nonthaburi's Bang Yai district with Kanchanaburi, an intermodal facility in Chiang Khong district in Chiang Rai province; the Nakhon Phanom Border Transportation Center; and the second phase of a solid waste management project in Nakhon Ratchasima. 

The seven larger projects are:

• The Orange Line (east section) connecting Thailand Cultural Centre and Min Buri (US$3.1 billion);
• The Orange Line (west section) linking Thailand Cultural Center and Taling Chan (US$2.4 billion);
• The Purple Line route between Kanchanaphisek Outer Ring Road and Tao Pun (US$3.7 billion);
• A project to enhance the private sector's role in Suvarnabhumi airport rail link (US$1.2 billion);
• The high-speed rail project linking Bangkok and Rayong (US$4.3 billion);
• The high-speed rail network linking Bangkok and Hua Hin (US$3.2 billion); 
• The motorway between Nakhon Pathom and Cha-am (US$2.3 million)

The 12 projects exclude the State Railway of Thailand's planned commercial development of a US$436 million plot at Bang Sue station. 

The Public-Private Partnership (PPP) Committee last year approved five megaprojects worth US$9.5 billion. Two of them, both monorail projects, have already secured cabinet approval.