In a renewed crackdown on companies with tax liabilities, the Federal Inland Revenue Service (FIRS) on Monday shut down some defaulting companies in Port Harcourt, Lagos and Ibadan. In Port Harcourt, Rivers state, the FIRS enforcement team, led by Ruth Madeun, shut down two companies having a combined tax debt of N1.077bn. The companies are Lafarge Cement Limited and IGPES, ...