(Reuters) – ArcelorMittal Polish unit said on Wednesday it is currently assessing potential risks of gas shortages and its impact on its operations in Poland after Russian energy group Gazprom halted supplies to the country. “However, we have been assured by the relevant authorities that sufficient gas supply is available in the near future and no shortage is expected,” ArcelorMittal’s spokesperson for Poland told Reuters in an email. The world’s largest steelmaker operates rolling mills, coking plants, blast furnaces, a steel mill and a power plant in Poland, she added. (Reporting by Dagmarah…