Exhibit 99.1

Materialise Reports Second Quarter 2023 Results

LEUVEN, Belgium--(BUSINESS WIRE)—July 26, 2023 -- Materialise NV (NASDAQ:MTLS), a leading provider of additive manufacturing and medical software and of sophisticated 3D printing services, today announced its financial results for the second quarter ended June 30, 2023.

Highlights – Second Quarter 2023

Executive Chairman Peter Leys commented, “Materialise delivered another strong operational performance in the second quarter of 2023. Our consolidated revenues of 64,810 kEUR rose almost 12% compared to the same period last year, with increased revenues in all three of our segments. Materialise Medical had an especially robust performance with revenue increasing 20%. Our Q2 2023 consolidated Adjusted EBITDA of 4,755 kEUR represents an increase of more than 12% compared to last year's corresponding period despite the (5,189) kEUR negative impact resulting from an unexpected adverse resolution of an arbitration proceeding in May 2023. Given the strength of our fundamental operations, we are able to maintain the guidance previously provided for both our 2023 revenue and our Adjusted EBITDA.”

Second Quarter 2023 Results

Total revenue for the second quarter of 2023 increased 11.6% to 64,810 kEUR from 58,070 kEUR for the second quarter of 2022. Adjusted EBITDA amounted to 4,755 kEUR for the second quarter of 2023 compared to 4,240 kEUR for the corresponding 2022 period. The Adjusted EBITDA margin (Adjusted EBITDA divided by total revenue) for the second quarter of 2023 was 7.3%, equal to the second quarter of 2022. Excluding the (5,189) kEUR negative impact resulting from the unexpected adverse resolution of an arbitration proceeding, our Adjusted EBITDA margin for the quarter would have been 15.3%.

Revenue from our Materialise Software segment increased 3.6% to 11,030 kEUR for the second quarter of 2023 from 10,642 kEUR for the same quarter last year. Segment EBITDA increased to 1,973 kEUR from 821 kEUR while the segment EBITDA margin was 17.9% compared to 7.7% for the corresponding prior-year period.

Revenue from our Materialise Medical segment increased 19.6% to 24,945 kEUR for the second quarter of 2023 compared to 20,855 kEUR for the same period in 2022. Segment EBITDA amounted to 2,683 kEUR for the second quarter of 2023 compared to 4,474 kEUR while the segment EBITDA margin was 10.8% compared to 21.5% for the second quarter of 2022. The Medical segment EBITDA for the second quarter of 2023 includes the (5,189) kEUR negative effect from an arbitration award granted against us in our previously disclosed indemnification dispute with Zimmer Biomet related to certain joint replacement devices. Excluding the (5,189) kEUR negative impact, the Adjusted EBITDA margin of our Medical segment for the quarter would have been 31.6%.

Revenue from our Materialise Manufacturing segment increased 8.5% to 28,835 kEUR for the second quarter of 2023 from 26,574 kEUR for the second quarter of 2022. Segment EBITDA amounted to 2,708 kEUR compared to 1,581 kEUR for the same period last year, while the segment EBITDA margin was 9.4% compared to 5.9% for the second quarter of 2022.

Gross profit was 37,047 kEUR for the second quarter of 2023 compared to 32,030 kEUR for the same period last year, while gross profit as a percentage of revenue increased to 57.2% compared to 55.2% for the second quarter of 2022.

Research and development (“R&D”), sales and marketing (“S&M”) and general and administrative (“G&A”) expenses decreased in the aggregate by 1.3% to 33,176 kEUR for the second quarter of 2023 from 33,613 kEUR for the second quarter of 2022, with disciplined cost containment in S&M and G&A fully offsetting the increased costs of our continued R&D efforts.

Net other operating income, which includes the negative impact from the adverse arbitration award, was (4,468) kEUR compared to 498 kEUR for the second quarter of 2022.

Operating result amounted to (597) kEUR compared to (1,084) kEUR for the second quarter of 2022.

Net financial result was 635 kEUR compared to 2,580 kEUR for the second quarter of 2022.

The second quarter of 2023 contained income tax expenses of (532) kEUR, compared to (600) kEUR in the second quarter of 2022.

As a result of the above, net result for the second quarter of 2023 was (494) kEUR, compared to 896 kEUR for the same period in 2022. Total comprehensive income for the second quarter of 2023, which includes exchange differences on translation of foreign operations, was 140 kEUR compared to 771 kEUR for the corresponding 2022 period.

At June 30, 2023, after payment of the 5,189 kEUR arbitration award, we had cash and cash equivalents of 136,285 kEUR compared to 140,867 kEUR at December 31, 2022. Gross debt amounted to 72,412 kEUR, compared to 80,980 kEUR at December 31, 2022. As a result, our net cash position (cash and cash equivalents less gross debt) was 63,873 kEUR, an increase of 3,986 kEUR compared to December 31, 2022

Cash flow from operating activities for the second quarter of the year 2023 was 775 kEUR compared to 8,636 kEUR for the same period in 2022. Total capital expenditures for the second quarter of 2023 amounted to 2,119 kEUR.

Net shareholders’ equity at June 30, 2023 was 233,393 kEUR compared to 228,928 kEUR at December 31, 2022.

2023 Guidance

Mr. Leys concluded, “Seven months into 2023, Materialise continues to expect to report consolidated revenue towards the high end of the 255,000 kEUR to 260,000 kEUR range we previously provided. We are also maintaining, despite the unexpected arbitration award granted against us in May 2023 for a total amount of (5,189) kEUR, our Adjusted EBITDA guidance between 28,000 kEUR and 33,000 kEUR for fiscal year 2023”.

Non-IFRS Measures

Materialise uses EBITDA and Adjusted EBITDA as supplemental financial measures of its financial performance. EBITDA is calculated as net profit plus income taxes, financial expenses (less financial income), shares of profit or loss in a joint venture and depreciation and amortization. Adjusted EBITDA is determined by adding share-based compensation expenses, acquisition-related expenses of business combinations, impairments and revaluation of fair value due to business combinations to EBITDA. Management believes these non-IFRS measures to be important measures as they exclude the effects of items which primarily reflect the impact of long-term investment and financing decisions, rather than the performance of the company’s day-to-day operations. As compared to net profit, these measures are limited in that they do not reflect the periodic costs of certain capitalized tangible and intangible assets used in generating revenues in the company’s business, or the charges associated with impairments. Management evaluates such items through other financial measures such as capital expenditures and cash flow provided by operating activities. The company believes that these measurements are useful to measure a company’s ability to grow or as a valuation measurement. The company’s calculation of EBITDA and Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies. EBITDA and Adjusted EBITDA should not be considered as alternatives to net profit or any other performance measure derived in accordance with IFRS. The company’s presentation of EBITDA and Adjusted EBITDA should not be construed to imply that its future results will be unaffected by unusual or non-recurring items.

Exchange Rate

This document contains translations of certain euro amounts into U.S. dollars at specified rates solely for the convenience of readers. Unless otherwise noted, all translations from euros to U.S. dollars in this document were made at a rate of EUR 1.00 to USD 1.0866, the reference rate of the European Central Bank on June 30, 2023.

Conference Call and Webcast

Materialise will hold a conference call and simultaneous webcast to discuss its financial results for the second quarter of 2023 on Wednesday, July 26, 2023, at 8:30 a.m. ET/2:30 p.m. CET. Company participants on the call will include Wilfried Vancraen, Founder and Chief Executive Officer; Peter Leys, Executive Chairman; and Koen Berges, Chief Financial Officer. A question-and-answer session will follow management’s remarks.

The conference call will also be broadcast live over the Internet with an accompanying slide presentation, which can be accessed on the company’s website at http://investors.materialise.com. A webcast of the conference call will be archived on the company's website for one year.

About Materialise

Materialise incorporates 30 years of 3D printing experience into a range of software solutions and 3D printing services, which form the backbone of the 3D printing industry. Materialise’s open and flexible solutions enable players in a wide variety of industries, including healthcare, automotive, aerospace, art and design, and consumer goods, to build innovative 3D printing applications that aim to make the world a better and healthier place. Headquartered in Belgium, with branches worldwide, Materialise combines one of the largest groups of software developers in the industry with one of the largest 3D printing facilities in the world. For additional information, please visit: www.materialise.com.

Cautionary Statement on Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, regarding, among other things, our intentions, beliefs, assumptions, projections, outlook, analyses or current expectations, plans, objectives, strategies and prospects, both financial and business, including statements concerning, among other things, our estimates for the current fiscal year’s revenue and Adjusted EBITDA, our results of operations, cash needs, capital expenditures, expenses, financial condition, liquidity, prospects, growth and strategies (including how our business, results of operations and financial condition could be impacted by the ongoing military conflict between Ukraine and Russia and economic sanctions thereto as well as by inflation and increased labor, energy and materials costs), and the trends and competition that may affect the markets, industry or us. Such statements are subject to known and unknown uncertainties and risks. When used in this press release, the words “estimate,” “expect,” “anticipate,” “project,” “plan,” “intend,” “believe,” “forecast,” “will,” “may,” “could,” “might,” “aim,” “should,” and variations of such words or similar expressions are intended to identify forward-looking statements. These forward-looking statements are based upon the expectations of management under current assumptions at the time of this press release. These expectations, beliefs and projections are expressed in good faith and the company believes there is a reasonable basis for them. However, the company cannot offer any assurance that our expectations, beliefs and projections will actually be achieved. By their nature, forward-looking statements involve risks and uncertainties because they relate to events, competitive dynamics and industry change, and depend on economic circumstances that may or may not occur in the future or may occur on longer or shorter timelines than anticipated. We caution you that forward-looking statements are not guarantees of future performance and involve known and unknown risks, uncertainties and other factors that are in some cases beyond our control. All of the forward-looking statements are subject to risks and uncertainties that may cause the company's actual results to differ materially from our expectations, including risk factors described in the company's most recent annual report on Form 20-F filed with the U.S. Securities and Exchange Commission. There are a number of risks and uncertainties that could cause the company's actual results to differ materially from the forward-looking statements contained in this press release.

The company is providing this information as of the date of this press release and does not undertake any obligation to update any forward-looking statements contained in this press release as a result of new information, future events or otherwise, unless it has obligations under the federal securities laws to update and disclose material developments related to previously disclosed information.

Consolidated income statements (Unaudited)

Consolidated statements of comprehensive income (Unaudited)

Consolidated statement of financial position (Unaudited)

Consolidated statement of cash flows (Unaudited)

Reconciliation of Net Profit (Loss) to EBITDA and Adjusted EBITDA (Unaudited)

(1) Share-based compensation expense represents the cost of equity-settled and share-based payments to employees.                                

Segment P&L (Unaudited)

(1)  Unallocated segment adjusted EBITDA consists of corporate research and development and corporate other operating income (expense), and the added share-based compensation expenses, acquisition related expenses of business combinations, impairments and fair value of business combinations that are included in Adjusted EBITDA.

Reconciliation of Net Profit (Loss) to Segment adjusted EBITDA (Unaudited)