HALCROW has acquired the remaining 51% interest in Bangkok-based civil engineering consultancy Pyramid Development International Corp.

PDI and Halcrow have worked together since the mid-1990s on projects including the Bangkok metro and double tracking for State Railway of Thailand, and in 2002 Halcrow acquired a 49% stake in PDI from Asian Engineering Consultants.

The company will now operate as Halcrow PDI, undertaking major projects throughout southeast Asia.

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