In 1812 a large works was constructed at Millwall, on the river Thames and close to the Royal Dockyard, to meet the high demand.
This site provided easy access to the high quantities of pig iron and coal needed in production.
[3] There is a monument near the site of the Pontypridd factory acknowledging Brown, Lenox & Co Ltd contribution to Marine safety.
On his return in 1808 the Admiralty were impressed by their performance and immediately ordered chains to be fitted to four warships.
A Sainsbury's supermarket now occupies the site, and the retail park it resides in was named after the demolished factory.