Factories in the CALABARZON Region resume operations after a temporary disruption of one to two days, according to Trade Secretary and Board of Investments chairman Ramon Lopez. The DTI and BOI checked the status of industries in the region following the eruption of Taal Volcano. Shown is the shop floor of a factory based in the Carmelray Industrial Zone, two days after the volcanic eruption. The factory has a clean room capability tolerance of 100 particles per million.