** Shares of Alpha HPA A4N.AX rise as much as 1.6% to A$0.93, their highest level since September 3, 2025
** Specialty material and technology co says conversion of letter of intent (LOI) into binding CY2026 supply contract to a South Korean customer for thermal fillers in HBM chip packaging
** Stock fell 12.9% in 2025
(Reporting by Sherin Sunny in Bengaluru)
((Sherin.Sunny@thomsonreuters.com))