Vertical Cement Mill IX. RESULTS AND DISCUSSIONS A. Data Collection Data collected from the information section of Berber Cement Factory related to the milling section.Oct 09, 2016 The Tanzania Portland Cement Company (TPCC) is the leading company in Tanzania’s cement industry, holding 36 of the market share. According to TPCC, the company’s production of cement is expected to reach 1.9m t per year as a result of the construction of a new Cement Mill (CM5), completed in 2014. October 24, 2019.