State run rubber company to fertilize 500-hectare Zamboanga rubber farm, to raise production by 40 to 60 percent State run rubber company to fertilize 500-hectare Zamboanga rubber farm, to raise production by 40 to 60 percent BD May 11, 2019 State-run ZNAC Rubber Estate Corp (ZREC) is fertilizing a 500-hectare rubber plantation in Zamboanga which may raise... Read More Read more about State run rubber company to fertilize 500-hectare Zamboanga rubber farm, to raise production by 40 to 60 percent