 All the works started as independent companies, but were gradually merged, and in 1900 the entire site was acquired by APCM, who renamed the site "Crown and Quarry Works".The works had limited raw materials, and its capacity was reduced to around half its peak size, before finally shutting down in 1963, after most of the chalk on the Frindsbury peninsula had been used up.The Formby Works (established 1862) was at Whitewall Creek and did not join the APCM.