Marcos signs mining tax regime law President Ferdinand Marcos Jr. signed Republic Act (RA) 12253 or the 'Enhanced Fiscal Regime for Large-Scale Metallic Mining Act' in Malacañang on Sept. 4, 2025. The new law seeks to simplify and rationalize the fiscal regime for large-scale metallic mining, ensuring an equitable share of mining revenues for the government while upholding the principles of transparency, accountability and good governance in the mining industry. Under the law, the estimated reve