The combined market value of publicly listed companies in the extractiveindustry is estimated to be at P245 billion as of February 2016. Political
and financial influence of mining companies is undeniable. The extent of
what we know about these companies is limited.
Most disclosures of these companies are financial in nature. Most mining
companies fail to disclose other documents and information mandated
by Philippine law. The Mining Transparency Index (MTI) evaluates the extent of disclosure of the biggest large-scale metallic mining companies operating in the Philippines as well as that of concerned government agencies.