J-Star’s LITZMO Unveils ER-01: The Brand’s First Carbon Fiber Fat-Tire E-Assist Bicycle

TAICHUNG CITY, Taiwan, Dec. 23, 2025 — J-Star Holding Co., Ltd. (Nasdaq: YMAT) (“J-Star” or the “Company”), a top provider of cutting-edge carbon fiber and composite solutions for a range of uses such as personal sports equipment, healthcare products, automobile parts, resin systems, and R&D services, today announced that its premium urban mobility brand, LITZMO, has launched what’s thought to be among the world’s first carbon fiber fat-tire electric assist bicycles, the ER‑01. The ER-01 joins LITZMO’s expanding lineup of e-bikes, which includes the EM-05, EM-05 Pro, EM-05 EVO, and EV-01.

Built to redefine urban mobility, the ER‑01 merges lightweight carbon fiber construction with user-friendly electric support, delivering a polished riding experience tailored to modern city living. Weighing just 27 kg total, it’s one of the lightest full e-bikes in its category. It also stands as the only model in the industry with a full carbon-fiber build for the frame, fork, and handlebar—greatly boosting agility and overall ride comfort.

Sam Van, J-Star’s Chief Executive Officer, said: “J-Star keeps using our advanced carbon fiber tech to develop innovative solutions, and LITZMO’s exciting ER-01 smart e-bike is the newest example. Thanks to full lightweight carbon fiber use, the ER-01 is exceptionally light—so riders can easily get around city streets while enjoying the comfort of fat tires, the flexibility of an e-bike, and smart features that boost convenience and safety.”

Key features of the ER-01 include:

  • Redefining Fat‑Tire Urban Mobility: Fat tires offer unrivaled stability but usually add a lot of weight. The ER‑01 tackles this issue by using carbon fiber for the frame, fork, and handlebar—cutting weight drastically while keeping riders confident. This lets users lift, push, and park the bike with ease—a must for city living.
  • Design & Color Expression: The ER‑01 boasts a smooth one-piece carbon fiber design, highlighting sleek lines and structural integrity. It comes in three signature colors: Ink Green (evoking exploration and street culture), Pure Black (offering minimalist strength via a matte finish), and Drift Blue (balancing calm and movement).
  • Smart Features for Everyday Life: The ER‑01 includes the SMART Z App, letting riders find their bike anytime, check battery level, look at ride history, turn on anti-theft tracking, and get motion alerts. It also has a signature welcome light, a lower storage basket, and a rear seat storage bag.
  • Performance Highlights: Run by a dedicated hub motor and a detachable battery, the ER‑01 provides a range of up to 100 km, a max assisted speed of 25 km/h, and a responsive ride perfect for city trips. Its lightweight carbon structure ensures natural handling and comfort on city roads.

More details are available on LITZMO’s , channel, and .

About J-Star Holding Co., Ltd.

J-Star (NASDAQ: YMAT) is a holding company with operations via subsidiaries in Taiwan, Hong Kong, and Samoa, and its headquarters in Taiwan. The company’s predecessor group was founded in 1970 and has over 50 years of expertise in the material composites sector. J-Star develops and sells tech for carbon reinforcement and resin systems. With decades of experience in composites and materials, J-Star uses its know-how and technology to design and make a wide range of lightweight, high-performance carbon composite products—from key structural parts of electric and sports bicycles to rackets, auto parts, and healthcare items. Visit j-starholding.com and to learn more.

About LITZMO

LITZMO is a light-mobility brand aimed at redefining urban transport via design, materials, and tech. By merging carbon fiber engineering with smart connectivity, LITZMO creates mobility solutions that fit perfectly into daily city life. Backed by J-Star’s deep expertise and unmatched technical capabilities, LITZMO is committed to pushing carbon fiber use to build a world where high-quality living and sustainable growth go hand in hand.

Forward-Looking Statements

Certain statements in this press release regarding future expectations, plans, and prospects—plus any other statements about non-historical matters—might be “forward-looking statements” under the Private Securities Litigation Reform Act of 1995. These include, but aren’t limited to, statements about expected trading start and closing dates. Words like “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would” and similar terms are used to spot forward-looking statements, though not all such statements use these words. Actual results might be very different from what these forward-looking statements suggest due to several key factors, including uncertainties around market conditions and other factors in the “Risk Factors” section of the final prospectus filed with the SEC. For these and other reasons, investors are warned not to rely too much on any forward-looking statements in this release. Any forward-looking statements here are only valid as of today’s date, and J-Star clearly says it has no obligation to update any forward-looking statement—whether from new info, future events, or other reasons—unless the law requires it.

Contact:
Matt Chesler, CFA
FNK IR
646-809-2183