The Philippine utility’s acquisition of the Wawa bulk-water project strengthens its control over Metro Manila’s water supply—but brings heavier debt and interest expenses. **MANILA—**Manila Water Co. reported stronger first-half profitability and cash generation as higher tariffs lifted revenue faster than operating costs, helping the Philippine utility absorb the early financial burden of its acquisition of the Wawa Bulk Water Supply Project. Water and used-water revenue increased about 12% to ₱21.04 billion in the six months ended June, accounting for nearly all of the group’s revenue growth. The increase came primarily from higher customer rates rather than greater water consumption, underscoring the importance of regulated tariff adjustments to the company’s latest results. Total operating revenue, including finance income, rose 11% to ₱22.19 billion . Costs excluding depreciation and amortization increased by a more modest 6%, according to management’s cash-cost presentatio...