Westport Fuel Systems Signs MOU with Weichai Power

Next Step in the Commercialization of Westport™ HPDI for Heavy Duty Trucks in China

published: December 22, 2017

VANCOUVER, BC – Westport Fuel Systems Inc. (“Westport Fuel Systems”) (TSX:WPRT / Nasdaq:WPRT) announced today that it has signed a non-binding Memorandum of Understanding (“MOU”) with Weichai Power Co., Ltd. (“Weichai Power”) at a signing ceremony hosted by Mr. Tan Xuguang, Chairman and Chief Executive Officer of Weichai Holding Group Co., Ltd. in Jinan, Shandong Province, China. This MOU sets the framework for finalizing the development, marketing, and commercialization of the Westport high pressure direct injection (“Westport™ HPDI”) technology in China.

The MOU states that Westport Fuel Systems will provide support for the Westport™ HPDI development activities to meet China VI emissions standards and will supply certain components.

The parties are expected to enter into a definitive agreement in early 2018.

About Westport Fuel Systems

At Westport Fuel Systems, we are driving innovation to power a cleaner tomorrow. We are inventors, engineers, manufacturers and suppliers of advanced clean fuel systems and components that can change the way the world moves. Our technology delivers performance, fuel efficiency and environmental benefits to address the challenges of global climate change and urban air quality. Headquartered in Vancouver, Canada, we serve our customers in more than 70 countries with leading global transportation brands. At Westport Fuel Systems, we think ahead. For more information, visit www.wfsinc.com.

Cautionary Note Regarding Forward Looking Statements

Note: This press release contains forward-looking statements, including statements regarding the timing and completion of a definitive agreement regarding the development of Westport HPDI system with Weichai, the demand for our products, the future success of our business and technology strategies, investment in new product and technology development and otherwise, intentions of partners and potential customers, the performance and competitiveness of Westport Fuel Systems' products and expansion of product coverage, liquidity, future market opportunities and timing of future agreements as well as Westport Fuel Systems management's response to any of the aforementioned factors. These statements are neither promises nor guarantees, but involve known and unknown risks and uncertainties and are based on both the views of management and assumptions that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activities, performance or achievements expressed in or implied by these forward looking statements. These risks and uncertainties include risks and assumptions related to our industry and products, the general economy, governmental policies and regulation, technology innovations, the availability and price of natural gas, global government stimulus packages, the acceptance of and shift to natural gas vehicles, the development of competing technologies, our ability to adequately develop and deploy our technology, the actions and determinations of our joint venture and development partners, as well as other risk factors and assumptions that may affect our actual results, performance or achievements or financial position discussed in our most recent Annual Information Form and other filings with securities regulators. Readers should not place undue reliance on any such forward-looking statements, which speak only as of the date they were made. We disclaim any obligation to publicly update or revise such statements to reflect any change in our expectations or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in these forward looking statements except as required by National Instrument 51-102. The contents of any website, RSS feed or twitter account referenced in this press release are not incorporated by reference herein.

More Information

Westport Fuel Systems
(Investor Inquiries)

Caroline Sawamoto

Manager, Investor Relations & Communications

T 604-718-2046

invest@wfsinc.com

www.wfsinc.com

News Releases

May 31

Westport Fuel Systems Announces New Chief Financial Officer

Westport Fuel Systems Inc. today announced the appointment of Mike Willis as Chief Financial Officer ("CFO") effective June 11, 2018. Ashoka Achuthan, Westport Fuel Systems current CFO, will step down from his position but continue to serve as an advisor to the leadership team through a transition period.

May 9

Westport Fuel Systems Publishes 2018 Annual and Special Meeting of Shareholders Results

Westport Fuel Systems Inc. held its Annual and Special Meeting of Shareholders on Monday, May 7, 2018 in Toronto, Ontario.

May 8

Westport Fuel Systems to Announce First Quarter Results on Friday, May 11, 2018

Westport Fuel Systems Inc. announced today that it will disclose its financial results for the first quarter ended March 31, 2018 on Friday, May 11, 2018 before market open. To coincide with the disclosure, Westport Fuel Systems has also scheduled a conference call for Friday, May 11, 2018 at 8:30 am Eastern Time.

Twitter