By Marc Ashdown
Business Correspondent, BBC News
The UK alloy industry, which supports thousands of jobs, is "a whisker distant from collapse", the Unite national says.
It has written a missive to Business Secretary Grant Shapps seeking an urgent gathering to propulsion for much support.
Unite has accused the authorities of taking "little meaningful action" to assistance the industry, leaving the assemblage "at breaking point".
The authorities said the occurrence of the alloy manufacture is simply a priority.
In the letter, Steve Turner, Unite's adjunct wide secretary, said determination were a fig of issues causing the manufacture problems.
These included "crippling vigor costs, c taxes, mislaid markets, little demand, and unfastened marketplace entree for imported steel".
Writing to Mr Shapps connected behalf of 2 different unions arsenic good - Community and GMB - Mr Turner said the challenges faced by manufacturers similar British Steel, Tata Steel, and Liberty Steel were the consequences of "direct actions by your authorities that have... importantly undermined UK works competitiveness successful planetary markets".
"With small meaningful enactment connected the portion of authorities successful areas of UK procurement policy, vigor pricing support, greenish vigor procreation oregon enactment for concern successful caller works and technologies, the manufacture is astatine breaking point," Mr Turner added.
"We are, successful the words of many, 'a whisker distant from collapse'".
He said UK alloy "employs tens of thousands of skilled workers and hundreds of apprentices", and asked for an urgent gathering to sermon "current and aboriginal authorities policy" to enactment the sector.
It has been reported that the Chancellor Jeremy Hunt is poised to assistance a £300m backing package for British Steel.
The wealth has not been confirmed by the Treasury, but the BBC understands it would beryllium connected the firm's Chinese owners, Jingye, investing successful greener technology.
Responding to the letter, a spokesperson for the Department for Business, Energy and Industrial Strategy said the authorities recognised "the captious relation that alloy plays wrong the UK economy, supporting section jobs and economical growth".
It said it was "committed to securing a sustainable and competitory aboriginal for the UK alloy sector," adding that Mr Shapps "considers the occurrence of the alloy assemblage a precedence and continues to enactment intimately with manufacture to execute this".
Commenting connected the projected backing bundle for British Steel, Labour's Shadow Business Secretary, Jonathan Reynolds, said the UK alloy assemblage has been near "on the brink" arsenic a effect of the government's nonaccomplishment to travel up with semipermanent solutions.
"Endless sticking plaster solutions from the Conservatives person near our UK alloy assemblage connected the brink," said Mr Reynolds.
"Instead of uncovering a semipermanent solution, successive Conservative governments person lurched from situation and bailouts with nary program to support UK alloy internationally competitory oregon present a instrumentality connected taxpayers investment."