WATCH THE VIDEO HERE The Nigerian National Petroleum Company Limited (NNPC Ltd) has announced that the country’s Port Harcourt Refining Company (PHRC) will undergo a planned maintenance shutdown. The scheduled maintenance and sustainability assessment will commence today, Olufemi O. Soneye, Chief Corporate Communications Officer, NNPC Ltd, said in a statement. He hinted that the NNPCL is working closely with all relevant stakeholders, including the Nigerian Midstream and Downstream Petroleum Regulatory Authority (NMDPRA), to ensure that the maintenance and assessment activities are carried out efficiently and transparently.