LONDON (Reuters) - Lucozade Ribena Suntory, owned by drinks giants GlaxoSmithKline (GSK.L) and Japan’s Suntory Holdings (2557.T), said on Monday it had opened a new production line that will boost annual production capacity by 75 percent.

The new production line has been installed at the firm’s British plant in Darwen, Lancashire, and will help produce 750 million bottles of liquids to be sold in over 40 countries.

“This is a significant achievement by the team and a vote of confidence in our ability to meet the long-term future of Lucozade Ribena Suntory,” said Ron Cowley, chief executive of Lucozade Ribena Suntory.

The new production line can now produce around 4.5 million bottles per day, taking annual output capacity to around 10 million cases.

A company spokeswoman said that 75 percent of the new capacity was already being used but declined to give a total for the UK manufacturing facilities. She said Lucozade Ribena Suntory would continue to look for ways to increase production.

Lucozade Ribena Suntory had sales of around 2.7 billion pounds ($3.8 billion) in the year to end-April 2018.