Aston Martin Lagonda, the Midland producer of luxury hand-crafted sports cars, has announced plans for £500 million in investment and trade with Japan.
The investment program was announced by Dr Andy Palmer, Aston Martin's president and chief executive, during his visit to Japan as part of the UK delegation accompanying Prime Minister Theresa May.
The manufacturer provides jobs for 2,500 people in the West Midlands, including contractors and 1,700 direct employees, at its site in Gaydon, Warwickshire.
It is also due to open a second manufacturing site at South Wales.
The Prime Minister said: "Aston Martin's £500m deal will directly benefit the Gaydon plant in West Midlands and the St Athan plant in Wales, helping safeguard existing jobs and opening new possibilities for future deals with Japan."
Mrs May hopes to sign a trade deal with Japan after Brexit.
Aston Martin's aim is to grow on its success in exporting UK-made cars to Japan, one of its biggest overseas markets.
The package includes plans for exports worth more than £400 million, boosted by new sports cars and the introduction of the company's first Sports Utility Vehicle, the DBX.
Aston Martin will buy more than £70 million in components from Japanese suppliers including Bridgestone, Denso, Mitsubishi and Yazaki.
The firm will open an Aston Martin Meta Technology and Luxury Accelerator in Japan, to be up and running in 2018.
It will also invest in a flagship global brand centre in Tokyo, create a new Aston Martin Japan HQ and further grow the Aston Martin dealer network across Japan.
Dr Palmer said: "Last week, we unveiled our half yearly results, which saw Aston Martin register its third successive quarter of pre-tax profit. Our improving performance reflects rising demand for our new and special products.
"As the world's second largest luxury car market, Japan is key to our future plans as we completely revitalise and expand our product portfolio under our Second Century plan.
"We have long enjoyed a loyal following from Japanese customers and the public alike, with our new dealership in Tokyo set to become our largest worldwide by volume.
"To ensure we are focused on the needs of Japanese and Asian customers, we are creating a Meta Technology and Luxury Accelerator office in Tokyo, reporting directly to HQ, to develop insights into luxury customer behaviour in Asia."
Mrs May said: "As we prepare to leave the European Union, it is vital that we build on our existing ties with friends and allies.
"Aston Martin is a prime example of the innovative and world-leading firms the UK is proud of and I'm delighted they are joining me on this important trade mission."
Aston Martin currently exports a range of four sports cars to Japan including the new DB11 model.
In late 2019, the company will introduce a sports utility vehicle built at the company's facility in South Wales.
More than 80 per cent of Aston Martin production is exported, a figure set to increase as it grows sales overseas, particularly in the United States and Asia.
The announcement is a boost for Mrs May, who hopes her visit to Japan will pave the way for a trade deal.
She is to have several meetings with Shinzo Abe, her Japanese counterpart, during her three-day visit.
But Japan has warned it is concerned about the effect of Brexit on Japanese businesses in the UK.
Earlier this week, Shinichi Iida, Minister for public diplomacy at the Japanese embassy, said Japanese businesses were expecting "clarity" over the Brexit process.
He told BBC Radio 4's Today programme: "The Japanese embassy here has been having very close conversations with the Japanese businesses operating in the UK.
"Yes they are concerned with the Brexit processes to come and it is no secret the Japanese Government and also as well as lots of Japanese companies preferred the situation in which the UK would remain within the EU.
"However, what Japanese businesses are expecting in my view is the clarity and the predictability over the process to come, particularly the recent agreement within the UK Government for the provisional period will be a very important factor because it will give the time and adaptability for the Japanese companies to adjust to a new environment after Brexit."