The release of the latest Markit/CIPS Purchasing Managers' Index shows the UK's manufacturing sector is growing faster than at any point in the last year.
With any figure over 50 indicating expansion, the index rose to 51.3 in May from 50.2 in the previous month.
Markit economist Rob Dobson explained that the domestic market was the main impetus to new order inflows during the course of last month.
He also pointed out that "demand from overseas markets at least managed to keep its head above water".
Alan Clarke at Scotiabank described the figures from the index as "encouraging" and stated that this "improving trend in business sentiment will continue".
The manufacturing sector is often viewed by analysts as one of the key indicators for the state of an economy. In the first quarter of 2013, the UK economy grew by 0.3 per cent.
Recent official data showed economic growth was unrevised for the first three months of the year at 0.3 per cent.
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