China has imposed a temporary ban on helium exports as renewed Middle East conflict raises concerns over global supplies of the gas, a critical component in semiconductor manufactu

China has imposed a temporary ban on helium exports as renewed Middle East conflict raises concerns over global supplies of the gas, a critical component in semiconductor manufacturing. Link China halts helium exports amid renewed Middle East conflict Beijing said the temporary ban is intended to prevent domestic shortages as renewed Middle East fighting threatens supplies of the gas used in semiconductor manufacturing.