NAKHON RATCHASIMA : Capital expenditure topping US$25 billion over the next five years may generate a double-digit return on investment for PTT Exploration and Production Plc (PTTEP).
A ranger stands next to an information sign at Khao Yai National Park. YUTHANA PRAIWAN
But a much smaller sum of 100 million baht, spent to develop tourist facilities at Khao Yai National Park, has already yielded proven value for the public and nature.
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