LUXFER HOLDINGS PLC

1. Basis of Presentation and Responsibility for interim Financial Statements

We prepared the accompanying unaudited condensed consolidated financial statements of Luxfer Holdings PLC and all wholly-owned, majority owned or otherwise controlled subsidiaries on the same basis as our annual audited financial statements. We condensed or omitted certain information and footnote disclosures normally included in our annual audited financial statements, which we prepared in accordance with U.S. Generally Accepted Accounting Principles (GAAP).

Our quarterly financial statements should be read in conjunction with our Annual Report on Form10-K for the year ended* December 31, 2025*. As used in this report, the terms "we," "us," "our," "Luxfer" and "the Company" mean Luxfer Holdings PLC and its subsidiaries, unless the context indicates another meaning.

In the opinion of management, our financial statements reflect all adjustments, which are only of a normal recurring nature, necessary for the fair statement of financial statements for interim periods in accordance with U.S. GAAP and with the instructions to Form10-Q in Article10 of Securities and Exchange Commission (SEC) Regulation S-X.

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions about future events that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of our financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates, and any such differences* may*be material to our financial statements.

Our fiscal year ends on* December 31.We report our interim quarterly periods on a13*-week quarter basis, ending on a Sunday. The First Quarter2026, ended on* March 29, 2026*, and the First Quarter2025, ended on* March 30, 2025*.

Accounting standards issued butnot yet effective

In* November 2024,the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”)No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic220*-40), which requires public business entities to provide disaggregated disclosure of certain income statement expenses. ASU2024-03 is effective for fiscal years beginning after* December 15, 2026,and for interim periods within fiscal years beginning after December 15, 2027.The Company is currently evaluating its impact and will adopt this guidance in accordance with the required effective date, beginning with its annual reporting for the year ending December 31, 2027.*

The Company has reviewed other recently issued accounting standards and doesnot expect any other standards that have been issued but arenot yet effective to have a material impact on its consolidated financial statements.

6

2. Earnings per share

Basic earnings per share are computed by dividing net income or loss for the period by the weighted-average number of ordinary shares outstanding, net of treasury shares and shares held in ESOP. Diluted earnings per share are computed by dividing net income for the period by the weighted average number of ordinary shares outstanding and the dilutive ordinary shares equivalents.

Basic and diluted earnings per share were calculated as follows:

(1) The calculation of earnings per share is performed separately for continuing and discontinued operations. As a result, the sum of thetwo in any particular period* may**not* equal the earnings-per-share amount in total.

In the First Quarter2026 and2025, basic average shares outstanding and diluted average shares outstanding were the same for discontinued operations because the effect of potential shares of common stock was anti-dilutive since the Company generated a net loss from discontinued operations.

3. Net Sales

Disaggregated sales disclosures for the quarters ended* March 29, 2026,and March 30, 2025*, are included below and in Note15, Segmental Information.

The Company’s performance obligations are satisfied at a point in time. With the classification of our Superform business as discontinued operations,none of the Company's revenue from continuing operations is satisfied over time. As a result, the Company's contract receivables, contract assets and contract liabilities are included within current assets and liabilities held-for-sale.

4. Restructuring

The $2.3 million restructuring charges recognized in the First Quarter of2026 relate to the continued execution of restructuring initiatives previously announced, aimed at reducing our fixed cost structure and enhancing operational alignment, including the centralization of our North American gas cylinders and magnesium powders businesses. These charges comprise $2.2 million within the Gas Cylinders segment and $0.1 million within the Elektron segment, primarily relating to follow-on costs associated with the cessation of manufacturing at our Pomona, California facility in* December 2025,*including equipment relocation, site reorganisation, employee stay incentives and site remediation activities, as well as minor shutdown costs associated with the magnesium powders business.

The $0.1 million restructuring charges in the First Quarter of2025, also predominantly related to costs aimed at reducing our fixed cost structure and realigning the business.

7

4. Restructuring (continued)

Restructuring-related costs by reportable segment were as follows:

Activity related to restructuring, recorded inOther current liabilities in the consolidated balance sheets is summarized as follows:

5. Defined benefit pension credit

On* January 8, 2026,the Trustee of the Luxfer Group Pension Plan (“LGPP”) entered into a full buy-in contract with a U.K. insurer, Aviva. The buy-in is designed to substantially match the Plan’s benefit obligations with corresponding cash flow payments from the insurer, with effect from March 2026*payroll, in exchange for an agreed premium.

The buy-in doesnot constitute a settlement event underASC715,* Compensation—Retirement Benefits* and therefore doesnot require remeasurement of the Plan’s funded status for the Quarter ended* March 29, 2026.Accordingly, the net defined benefit asset recognized at March 31, 2026remains consistent with the year-end measurement as of December 31, 2025.*

For the First Quarter ended* March 29, 2026,*the Company recognized a net defined benefit pension credit of $0.0 million (2025: $0.6 million credit), reflecting $0.1 million of defined benefit pension credit, offset by $0.1 million of costs incurred in connection with the buy-in.

6. Other costs

In the First Quarter of2026, other costs of $0.6 million (First Quarter of2025: $nil) relate to continued fees incurred in relation to the Company's ongoing strategic review.

7. Income Taxes

We manage our affairs so that we are centrally managed and controlled in the United Kingdom (“U.K.”) and therefore have our tax residency in the U.K. The provision for income taxes consists of provisions for the U.K. and international income taxes. We operate in an international environment with operations in various locations outside the U.K. Accordingly, the consolidated income tax rate is a composite rate reflecting the earnings in the various locations and the applicable rates.

The effective income tax rate on continuing operations for the Quarter ended* March 29, 2026*, was 30.9%, compared to 25.7% for the Quarter ended* March 30, 2025*.

In2026 the rate was impacted by non-deductible expenses. Cash income taxes paid, net of refunds, are disclosed within supplementary cash flow information in the Consolidated Statements of Cash Flows.

8. Supplementary balance sheet information

9

**9. ** Goodwill and other identifiable intangible assets

Changes in goodwill during thefirst three months ended* March 29, 2026*, were as follows:

Accumulated goodwill impairment losses in relation to continuing activities were $8.0 million as of* March 29, 2026and December 31, 2025*.

Identifiable intangible assets consisted of the following:

Identifiable intangible asset amortization expense was $0.2 million for the First Quarter of2026 and2025.

Intangible asset amortization expense during each of the followingfive years is expected to be approximately $0.8 million per year.

10. Debt

Debt outstanding was as follows:

The weighted-average interest rate on the revolving credit facility was4.10% for the First Quarter of2026 and 6.40% for the full-year2025.

Loan notes due and shelf facility

The Note Purchase Agreement and Private Shelf Agreement requires us to maintain compliance with a minimum interest coverage ratio and a leverage ratio. We have been in compliance with the covenants under the Note Purchase and Private Shelf Agreement throughout all of the quarterly measurement dates from and including* September**30,* 2014, to* March 29, 2026*.

The Loan Notes due* June 29, 2026,the Shelf Facility and the Note Purchase and Private Shelf Agreement are governed by the law of the State of New York. In July 2025we completed a refinance of our shelf facility, the terms of this remaining the same, with expiry now in July 2030as opposed to October 2026.*

Senior Facilities Agreement

During the First Quarter of2026, we drew down net $18.2 million on the Revolving Credit Facility and the balance outstanding at* March 29, 2026*, was $33.5 million, and at* December 31, 2025*, was $15.3 million, with $91.5 million undrawn at* March 29, 2026* and $109.7 million undrawn at* December 31, 2025*.

Bank Overdraft

The bank overdraft is an uncommitted facility withno expiration date, this is reviewed annually and can be cancelled by either the bank or the Company on demand.

10

11. Discontinued Operations

Our Superform aluminum superplastic forming business, which operated from sites in the U.S. and the U.K., was historically included in the Gas Cylinders Segment. As a result of our decision to exit non-strategic aluminum product lines, we have reflected the results of operations of these businesses as discontinued operations in the Consolidated Statements of Income for all periods presented. We expect our Superform U.S. business to be sold within the nexttwelve months.

The assets and liabilities of the Superform business have been presented within Current assets held-for-sale and Current liabilities held-for-sale in the Consolidated Balance Sheets at* March 29, 2026and December 31, 2025*.

Results of discontinued operations in the First Quarter of2026 and2025 were as follows:

The associated assets and liabilities relating to Superform U.S. that are classified as held-for-sale were as follows:

The non-cash items for discontinued operations was as follows:

12. Share Plans

Total share-based compensation expense in the First Quarter of2026 and2025 was as follows:

In* March 2026,we issued our annual share-based compensation grants under the Luxfer Holdings PLC Long Term Umbrella Incentive Plan. The total number of awards issued was approximately 135,000 and the weighted average fair value of options granted in2026* was estimated to be $11.80 per share.

The following table illustrates the assumptions used in deriving the fair value of share options granted during2026 and the year-ended* December 31, 2025*:

The expected life of the share options is based on historical data and current expectations, and isnot necessarily indicative of exercise patterns that* mayoccur. The expected volatility reflects the assumption that the historical volatility over a period similar to the life of the options is indicative of future trends, which may**not* necessarily be the actual outcome.

11

13. Shareholders' Equity

Dividends paid and proposed

14. Segmental Information

We classify our operations into business segments based primarily on shared economic characteristics, including the nature of the products and services; the production processes; the type or class of customer; the methods used to distribute products or provide services; and the nature of the regulatory environment.

For the First Quarter ended* March 29, 2026,*the Company operated three business units, which aggregate intotwo reportable segments within continuing operations: Gas Cylinders and Elektron. Luxfer Gas Cylinders forms the Gas Cylinders segment, and Luxfer MEL Technologies and Luxfer Magtech aggregate into the Elektron segment.

Prior to its disposal on* July 2, 2025,the Luxfer Graphic Arts business was reported as a separate business unit and reportable segment following its disaggregation from the Elektron segment as of December 31, 2023.*As a result, Graphic Arts is included within the prior year comparative information.

The Superform business unit, which was previously aggregated into the Gas Cylinders segment, is presented within discontinued operations. A summary of the operations of the Company’s reportable segments within continuing operations is provided below.

Gas Cylinders segment

The Gas Cylinders segment manufactures and markets specialized cylinders using carbon composite materials and aluminum alloys. Products include pressurized cylinders for self-contained breathing apparatus (“SCBA”) used by firefighters and other emergency responders; cylinders for the containment of oxygen and other medical gases used in healthcare and aviation applications; aerospace and aviation cylinders used in aircraft safety systems, including emergency slide inflation and onboard oxygen storage; cylinders and systems for alternative fuel vehicles, including compressed natural gas (“CNG”) and hydrogen; space-related cylinders used in launch vehicle applications; and cylinders used in specialty industrial applications.

Elektron segment

The Elektron segment focuses on specialty materials based primarily on magnesium and zirconium. Key product lines include advanced lightweight magnesium alloys used across aerospace, defense, transportation, and industrial applications; magnesium powders used in aircraft countermeasure flares and heater meal applications; and high-performance zirconium-based materials and oxides used in automotive emissions control, industrial catalysis, pharmaceuticals, and other specialty applications.

Graphic Arts segment

The Graphic Arts segment provided a range of pre-sensitized magnesium, copper, and zinc plates, along with associated chemicals, used in the production of foil-stamping and embossing dies. The segment also manufactured non-sensitized polished brass and magnesium plates for computer numerical control (“CNC”) engraving and offered advisory services for turnkey engraving operations, including etching machines, computer-to-plate (“CtP”) machines, exposure units, and film setters. The Company completed the sale of the Graphic Arts business on* July 2, 2025.*

12

14. Segmental Information (continued)

Other

Other primarily represents unallocated corporate expenses and includes non-service-related defined benefit pension cost or credit.

Management monitors the operating results of its reportable segments separately for the purpose of making decisions about resource allocation and performance assessment. Segment performance is evaluated by the chief operating decision maker "CODM", the CEO, who is responsible for allocating resources and assessing performance of the operating segments, using net sales and adjusted EBITA, which is defined as the Company's measure of segment profit or loss, and is based on income before tax from continuing operations, adjusted for share-based compensation charges; restructuring charges; impairment charges; disposal costs; gain on disposal of assets held for sale/property, plant and equipment; defined benefit credit/charge, interest expense, net and amortization.

Unallocated assets and liabilities include those which are held on behalf of the Company and cannot be allocated to a segment, such as taxation, investments, cash, retirement benefits obligations, bank and other loans and holding company assets and liabilities.

Financial information by reportable segment in the quarters ended of2026 and2025 were as follows:

In the First quarter of2026 there were $0.1 million sales between our Elektron segment and Superform segment (2025: $0.1 million sales between our Elektron segment and Graphic Arts segment).

(1)Other cost of sales includes material costs and variable costs.

(2)Other segment items primarily consists of sales, marketing, research and development, general and admin costs.

13

14. Segmental Information (continued)

The following tables present certain geographic information by geographic region for the First Quarter ended* March 29, 2026,and March 30, 2025*:

(1) Net sales are based on the geographic destination of sale.

(2) Rest of the World comprises South America, Latin and South America, Africa and the Middle East.

14

15. Commitments and Contingencies

Committed and uncommitted banking facilities

The Company had committed banking facilities of$125.0 million at* March 29, 2026and December 31, 2025*. Of these committed facilities, $33.5 million was drawn at* March 29, 2026* and $15.3 million at* December 31, 2025*. The Company also had an additional $25.0 million of uncommitted facilities through an accordion provision at* March 29, 2026and December 31, 2025*.

Contingencies

In* December 2023,it was established that any potential liability arising from the lawsuits and reasonable defense costs related to the previously disclosed US Ecology case are covered by insurance. The Company recognized $7.7 million in thetwelve* months of2024, in relation to recovery of these costs previously incurred by the Company. $5.8 million cash was received in2024 with a further $1.9 million received in2025.

In* April 2025,the Office of Defects Investigation (ODI) of the National Highway Traffic Safety Administration (NHTSA) opened a Preliminary Evaluation to investigate allegations of compressed natural gas (CNG) fuel leaks in certain CNG fuel systems, equipped with certain Luxfer Type4* CNG fuel containers. Luxfer is fully co-operating with this Preliminary Evaluation, which has a range of potential outcomes, and at this stage Luxfer isnot able to estimate the potential financial impact. Luxfer doesnot believe that this alleged issue poses an unreasonable risk to motor vehicle safety.

In* July 2025,in accordance with the Luxfer Graphic Arts sale agreement, the Company has fully indemnified the purchaser for certain identified environmental matters relating to the Madison Illinois site, which we estimate will cost approximately $1.0 million to close out. A provision for these obligations has been recognized and is included within other current liabilities in the Consolidated Balance Sheet. Additionally, we have provided indemnification for any unidentified environmental matters that mayhave occurred between2003* (the year of the original acquisition by Luxfer) and* July 2025,capped at $10.0 million and / or5* years.

Also, in2025, the Company recognized a provision of $3.1 million in relation to dilapidation obligations associated with the former Superform U.K. site sold in2021, for which the Group remains a guarantor under the relevant lease arrangements following disposal of the business. The obligation reflects management’s best estimate of the costs required to settle the remaining property reinstatement and exit obligations.

16. Subsequent Events

Other than those disclosed elsewhere in the note to the financial statements,no material subsequent events to report.

15