Engineering group Widney said it was ready to compete against "almost suicidal competition" after a near fourfold increase in first half profits.
The company, which employs 350 people at two sites in the Midlands, has hailed an excellent year which followed its acquisition of the Air Flow Streamlines business.
It added that it expected a robust performance in the second half bolstered by improvements at its production plants.
Chairman Joe Grimmond said: "It has been a very difficult 12 months but we have great support from our customers and employees including the unions in changing and making sure we had to adapt to the requirements of the markets.
"I am confident about the ability of our UK business to compete against the almost suicidal competitions from some people.
"We are determined to defend our UK manufacturing."
Profits before tax rose 296 per cent from £472,000 to £1,868,000 while sales leapt to £ 35.2 million from £9.48 million in 2004.
The dividend was raised to 1.5p a share from 0.5p last time on the back of the performance which covered the six months to the end of March.
Widney is the holding company for Widney UK, which designs and manufactures window systems for specialist vehicles and telescopic slides at its site in Aston.
It also includes Belcot Tool and Die, in Brownhills, which designs and manufactures metal press tools for the automotive industry.
Widney Cabs, trading as Airflow Streamlines, which designs and manufactures cab assemblies for agricultural and construction equipment, was bought by the firm in a deal which could rise to £5.25 million last year.
Widney Cabs and Widney UK are both winning new business and new customers and benefit from strong order schedules from clients.
Mr Grimmond said: "We announced earlier that Widney Cabs had been nominated to supply cabs for new models replacing existing cabs.
"These cabs will be introduced progressively over the coming months beginning August/September.
"Belcot is operating below desired capacity and is unlikely to be profitable in the second half but represents only six per cent of group turnover.
"I anticipate a robust second half and further progress on new business.
"Our goal is to reduce real costs on a continuous basis."