** Shares of Hydrix HYD.AX rise as much as 180% to A$0.028
** Medical device distributor rose as much as 220% earlier in the day, posting their biggest intraday jump since mid-Aug, 2020
** Shares hit highest level since late August 2023, earlier in the day
** Co says its unit, Hydrix Services, enters A$2.8 mln ($1.76 mln) contract extension with European medical device co Paul Hartmann AG
** Co signed agreement with Hartmann in late May 2024 to provide product development services
** Co expects contract works to be completed by the end of September 2025
** Stock down 9.1% this year, as of last close
($1 = 1.5949 Australian dollars)
(Reporting by John Biju in Bengaluru)
((John.Biju@thomsonreuters.com))