Chief Inspector Agapito Nacario, Valenzuela City Bureau of Fire Protection (BFP) chief, said the first incident occurred at around 1 p.m. at the building of the Super Tex Enterprises, a furniture manufacturing company at 205 Maysan Road in Barangay Maysan.
Nacario said the blaze started at the production area of Super Tex Enterprises and spread rapidly due to the highly combustible materials and chemicals inside the building.
The fire reached the fifth alarm and also destroyed two adjoining manufacturing companies Pacific Powder Foam and Pluvial Enterprises.
Firefighters put out the fire at about 2:26 p.m. Aileen Versales, 31, an employee of one of the companies, sustained a laceration in the left elbow.
Inspector Enrico Caco, the local BFPs intelligence and investigation unit chief, said that damage was pegged at P5 million.
At about 10:31 p.m., another fire razed the JITC Plastic Products located at 184 Interior st., Barangay Karuhatan.
Nacario said the fire broke out inside the companys stockroom but firemen were able to contain the blaze within the firms compound.
Firefighters placed the blaze under control at about 11:20 p.m. and declared it out 10 minutes later.
No one was reported hurt in the incident but the company incurred damage amounting to around P500,000.
Valenzuela City arson investigators have yet to determine the cause of the fires as of press time yesterday.