The Office of the Secretary (OSEC) provides full support and efficient coordination of information to the DTI Secretary and among the functional groups of the Department. 
The other official of the OSEC is Assistant Secretary Arturo P. Boncato Jr. 
Under the OSEC are the following offices/organizations:
Internal Audit Service (IAS) 
Performs internal auditing of DTI systems and processes.
Resource Generation and Management Service (RGMS)
Coordinates and monitors the DTI's special projects.
Construction Industry Authority of the Philippines (CIAP)
Promotes, accelerates, and regulates the construction industry. Its implementing boards are the Philippine Contractors Accreditation Board (PCAB), the Philippine Overseas Construction Board (POCB), the Philippine Domestic Construction Board (PDCB), and the Construction Industry Arbitration Commission (CIAC).
Intellectual Property Office of the Philippines (IPOPHL)
Oversees and enforces the overall implementation of IP rights, trademarks, and patents.
National Development Company (NDC)
Invests in businesses where the private sector is not willing to venture into.
Philippine Economic Zone Authority (PEZA)
Attracts foreign investors to develop or put up export manufacturing plants or regional warehouses in world-class, environment-friendly economic zones (ecozones). PEZA administers and manages the incentives of approved special ecozones in various parts of the country.
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