DAVAO CITY (MindaNews / 9 December) – State-owned National Development Company (NDC) signed Thursday a P40-million deal with waste management firm Davao Thermo Biotech Corporation (DTBC)."As an existing venture that works on waste-to-fertilizer as an agricultural resource with an eye on further expansion, NDC’s P40-million investment is timely in supporting DTBC’s expansion plans – an