Gillingham Portland Cement Co
of Westminster Chambers, London SW (1875)[1]
1882 Installation of compound steam engine at the company's works at Chatham[2]
c.1889 May have been the company who set up the Quarry Works, Frindsbury
1893 The Company built a new works on the Thames rather than develop Quarry Works, owing to the difficulties of chalk supply.
1895 Sold the Quarry Works.