** Shares of Australia's Lynas Rare Earths LYC.AX jump as much as 15% to A$20.37, hitting their highest level since October 21, 2025
** Stock set for strongest intraday trading session since January 7
** Lynas, world's largest rare earth producer outside China, said after market hours on Tuesday that it has revamped its supply agreement with Japan Australia Rare Earths
** Co secured a firm annual commitment for 5,000 tonnes of neodymium‑praseodymium
** Co will set aside 75% of its heavy rare earth oxide output for Japanese industry
** YTD, stock up 61.7%, including session moves
(Reporting by Shivangi Lahiri in Bengaluru)
((shivangi.lahiri@thomsonreuters.com))