form 20 f mark one registration statement pursuant to section 12 b or g of the securities exchange act 1934 x annual report 13 15 d for fiscal year ended december 31 1997 transition period from ____ commission file number 1 9159 norsk hydro asa exact name registrant as specified in its charter kingdom norway jurisdiction incorporation organization bygdøy allè 2 n 0240 oslo address principal executive offices registered be title each class on which american depositary shares new york stock ordinary nok per share par value not trading but only connection with requirements and none there is a reporting
