Sir Robert Ropner and Co
1919 Ropner Shipping Co was incorporated as a Public company under the control of Sir R. Ropner and Co.
1949 Ropner Holdings Ltd was incorporated with the aim of amalgamating Ropner Shipping Co and Pool Shipping Co. Both companies held shares in Chartair Ltd, an air transport company with interests in repair and maintenance of engines and machines 
1970 Ropner Holdings acquired its management company, Sir R Ropner and Co, from the Ropner family
Sources of Information
- The Times, Oct 12, 1935
- The Times, Mar 09, 1949
- The Times, Apr 24, 1970