US spirits group Brown-Forman is investing £30million at its GlenDronach whisky distillery in Aberdeenshire.
The move will allow it to more than double production capacity.
Global demand for The GlenDronach has tripled since 2016 - particularly in the US and Asia, but also in the travel retail sector.
This is the second phase of investment by Brown-Forman at the distillery near Huntly after renovations to its visitor centre in 2020 added a new tasting room, whisky bar, lounge, and retail space.
Part of the development programme will include restoration of the former maltings building as a working production area. All existing buildings and the courtyard will remain.
Briggs of Burton will serve as the principal contractor for the three-year phased project, with Blyth & Blyth as civil architect.
Distillery manager Laura Tolmie told the Press and Journal: "As a small, traditional Scottish distillery, we're proud to be custodian of such a revered single malt as The GlenDronach.
Preserving distillery heritage
"I'm pleased this significant investment in the long-term future of the distillery is secured, preserving our heritage while ensuring we can meet increasing demand for The GlenDronach at home and around the world."
GlenDronach is one of the oldest licensed distilleries in Scotland dating back to its founding by James Allardice in 1826.
The distillery matures its whisky in Spanish Pedro Ximenez and Oloroso sherry casks from Andalucia in Spain.
Parent company Brown-Forman owns three Scotch whisky distilleries - GlenDronach, Benriach and Glenglassaugh.
The firm now employs hundreds of people in the UK.
The US distiller has been in existence for more than 150 years with a portfolio instantly recognisable to anyone who has walked into a well-stocked bar, particularly with reference to its Jack Daniel's range.
The company has around 5,000 employees, and its products are sold in more than 170 countries.
Deal for Benriach Distillery Company
It was 2016 when Brown-Forman annouced it had agreed to buy Benriach Distillery Company for £285million.
The deal included three malt distilleries, a bottling plant and the company's Edinburgh HQ.
The transaction added three brands - The GlenDronach, Benriach and Glenglassaugh.
Benriach Distillery Company had a workforce of 165 at the time of the sale.
Paul Varga, chief executive officer of Brown-Forman said then: "The acquisition of these super-premium brands will allow Brown-Forman to re-enter one of our industry's most exciting and consistent growth segments - single malt Scotch whisky.
"The GlenDronach, Benriach, and Glenglassaugh single malt brands are rich in history and we believe they will continue to prosper and grow in our hands."
Brown-Forman had previously been a minority shareholder of Glenmorangie - marketing Glenmorangie single malt whisky in the US and Canada from 1992 to 2005.