shares in thyssenkrupp nucera opened positively friday on the hydrogen firms longawaited first day of trading on the frankfurt stock exchange at 0836 gmt the stock trades higher at eur2120 a share after opening at eur2020 nucera along with shareholders thyssenkrupp and industrie de nora set its initial public offering price at 20 euros 2179 a share implying a valuation of around eur253 billion a total of over 30 million shares were placed gross proceeds of around eur526 million from the ipo will be invested in the further growth of the hydrogen business thyssenkrupp said nucera which makes electrolyzers generating hydrogen from renewable sources has an order backlog worth around eur14 billion and contracted projects with a combined installed electrolysis capacity of more than 3 gigawatts the companys second attempt at a publicmarket listinglast year the planned ipo was delayed due to weak market conditionscomes at a time when clean hydrogen technology is getting a boost from supportive legislation in both europe and the us thyssenkrupp said it will retain a stake of at least 502 in the business while industrie de nora will have a stake of at least 259