Coal mining contractor PT Darma Henwa Tbk (DEWA), an affiliated of coal miner PT Bumi Resources Tbk (BUMI), were in frenzy acquisitions last year. However, the actions have raised questions. The story of the takeovers began on May 22 2007 when Darma Henwa acquired Prove Energy Investments, a British Virgin Islands-based SPV, from Zurich Asset Full Article