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Construction and civil engineering group
1960 Name of the Bath and Portland Stone Firms was changed to Bath and Portland Group.
1961 73rd AGM; the group was expanding, having 3 divisions - Stone, Agriculture and Engineering; Dorset Limestones had been acquired, formerly jointly owned with South Western Stone, which was one of 3 members of the Stone Division, together with Stone Firms and Portcrete thus offering both natural and artificial stone as well as stone cleaning. Calcofil Ltd was a member of agriculture division which had expanded from agricultural lime to the broader business of "soil fertility", which was the name given to the leading business in this division - Soil Fertility. The Engineering activities had grown out of activities originally supplying the group's businesses with purpose-made plant of new design; this division was being expanded by acquisition - recently acquired were K. D. G. Instruments and Stow and Partners of Crawley which had the same management.
1966 Proposed conversion of Portland harbour into a commercial port
1969 Bath and Portland integrated its building and civil engineering activities, forming 2 new subsidiaries: Marples Ridgway would be the new subsidiary carrying out all civil engineering work; Marples Ridgway (Building) would be the subsidiary controlling all building activities; Dudley Coles Long would be a subsidiary of Marples Ridgway (Building) 
1969 Losses on building contracts and on industrialised building components led to the Group making virtually no profit overall in the first half of the financial year
1970 Sold the Bath office.
1971 Profitability had been recovered; the dominance of building and civil engineering in terms of group turnover would be reduced
1973 The main divisions of the group were:
1983 Disposed of the civil engineering interests, which were not making much profit in view of the size of the turnover of these businesses; they were acquired by a Jersey-based subsidiary of the Dutch contractor, LTA. Acquired a Dutch instrumentation company to expand that division. Also investing in the quarrying businesses
1984 The company had developed a medical diagnostic scanner and was seeking a partner to market the machine. Was considering selling the loss making subsidiary Curwen and Newbery, maker of heat regeneration equipment
1989 Consolidated Gold Fields was acquired by Hanson