J-Star Shares Jump 125.58% to $2.91 After Houston Facility Plans

J-Star Holding Co., Ltd. (Nasdaq: YMAT) shares closed at $2.91 on Monday, Oct. 12, up 125.58% from $1.29 on Friday, Oct. 9, after the company announced plans for a Houston facility.

The stock opened at $2.61, hit a low of $1.95 and reached a high of $4.49. Trading volume totaled 85,100,500 shares before the market closed at 4 p.m. ET (8 p.m. UTC).

J-Star announced Oct. 9 at 4:05 p.m. ET (8:05 p.m. UTC) that it was developing capital initiatives to fund a planned Houston facility for high-volume production of commercial and defense unmanned aerial vehicle frames. The company said the funding would cover automated equipment, site preparation and production capabilities.

The company’s Form F-3 allows potential offerings of up to $150 million in Class A ordinary shares, debt securities, warrants, rights and units. That authorization provides a possible financing route but does not establish that J-Star has raised the funds or that the Houston facility is fully financed.

The facility remains in the planning stage. The company did not provide a construction cost, facility-specific financing amount, construction timetable or commercial production start date.

J-Star also said two patent applications filed in Taiwan in early 2026 relate to composite-to-metal interlocking and automated carbon-fiber skin-to-skeleton welding. The company described them as patent applications and did not say that either had been granted.