144 0001247606 XXXXXXXX LIVE 0000732026 TRIO-TECH INTERNATIONAL 001-14523 16139 WYANDOTTE ST. VAN NUYS CA 91406 818-787-7000 HOROWITZ RICHARD M Director Common Stock Charles Schwab Corporation

3000 Schwab Way Westlake TX 76262

50000 500000.00 4350555 12/18/2025 NYSE Common 10/06/2006 Open Market Purchase Open Market N 26000 10/06/2006 Cash Common 09/17/2007 Open Market Purchase Open Market N 12000 09/17/2007 Cash Common 02/20/2008 Open Market Purchase Open Market N 100 02/20/2008 Cash Common 02/12/2008 Open Market Purchase Open Market N 4000 02/12/2008 Cash Common 02/14/2008 Open Market Purchase Open Market N 2000 02/14/2008 Cash Common 02/19/2008 Open Market Purchase Open Market N 800 02/19/2008 Cash Common 02/15/2008 Open Market Purchase Open Market N 1200 02/15/2008 Cash Common 02/21/2008 Open Market Purchase Open Market N 400 02/21/2008 Cash Common 03/12/2008 Open Market Purchase Open Market N 100 03/12/2008 Cash Common 04/07/2008 Open Market Purchase Open Market N 3400 04/07/2008 Cash Y Shares to be sold in THE HOROWITZ FAMILY TRUST - RICHARD HOROWITZ TTEE 4 WK average volume Nov 17th Wk 1: 182,500 Nov 24th Wk 2: 144,800 Dec 1st Wk 3: 56,100 Dec 8th Wk: 4: 133,300 Total = 516,700 / 4 = 129,175 shares per week average 12/18/2025 RICHARD HOROWITZ