1. Corporate Identity and Base Details of the Penarth Dock Engineering Company.

Penarth Pontoon, Slipway & Ship Repairing Company Limited (originally established as the Penarth Shipbuilding and Shiprepairing Company Limited in 1878).

1961 Name Change: The company officially changed its name to Penarth Dock Engineering Company Limited. Nature of Business: Ship-repairing, marine engineering, general precision engineering, and commercial radiator manufacturing.

2. The 1970–1971 - Privatisation (The Transport Holding Company).

A major focal point of the company's early 1970s records involves the sale of state-owned shares. Following the Transport Act of 1962, the UK government's Transport Holding Company (THC) held a 37% nationalized stake in Penarth Dock Engineering.

Leslie Mackenzie joined Penarth Dock Engineering as works manager in 1967.

In 1970–1971, the UK Government formally divested its interests under the Transport Holding Company Bill. The state’s minority shares in Penarth Dock Engineering were "hived off" and sold back into entirely private ownership, after which the THC itself was dissolved.

3. Subsidiaries in the 1970's.

Companies House cross-references several active and winding-down subsidiaries tied to the parent engineering firm: Hodges (Barry) Engineering Co. Limited: A wholly-owned ship repair subsidiary based at Barry Docks. Though it operated through the 1970s, files show it was eventually dissolved in February 1982.

Penrad Limited (formerly Penarth Heating Engineers Limited): Active during this era manufacturing domestic and industrial central heating radiators.

Fownes Forge and Engineering Co. Ltd.

4. The 1977 Restructuring.

By the late 1970s, commercial operations at the physical Penarth Dock site had diminished significantly. To reflect changing operations and a shift in physical location, the company corporate structure shifted.

The 1977 Successor: In 1977, corporate records point to the formation of a restructured successor entity: Penarth Dock Engineering (1977) Limited.

Leslie Mackenzie became the Financial Director in 1977.

Registered Office Migration: The corporate registered office was moved away from the historic Penarth Dock site to Alexandra Dock, Newport, Gwent.

The company was dissolved during February 2007.

see also Chapter Nine : The Penarth Dock Engineering Company Limited.