Strong execution in uniquely challenging circumstances; limited impact of Covid-19

- Safety of our people, customers and communities came first; TIR1 down 53%

- Fully supporting customers while taking decisive action to reduce costs and preserve cash

- Delivery of £100m Iron Bridge order on track; majority to be delivered in H2

Resilient aftermarket demand in core mining markets reflects mission-critical technology

Balance sheet and liquidity remains robust

- Cash generated from operations2 of £192m; Net debt/EBITDA on covenant basis 2.6x

- Refinanced main banking facilities; c.£650m of immediately available liquidity excl. CCFF

Highlights

Jon Stanton, Weir Group Chief Executive Officer

"Our performance in these unprecedented times has reaffirmed the fundamental strength of our business. It has been inspiring to work with our teams around the world as they have succeeded in uniquely challenging circumstances.

Across Weir, we adapted quickly to the pandemic, putting the safety of our people and communities first, while also fully supporting our customers. The robust first half performance of our mining technology businesses has demonstrated their inherent resilience and the critical role they play in keeping essential activities running, while also helping our customers make the transition to smarter, more efficient and sustainable operations."

Financial performance

Continuing Operations3 H1 2020 H1 2019As

reportedConstant Currency4

Orders4 £1,141m £1,407m n/a -19%

Revenue £1,095m £1,329m -18% -17%

Operating profit2 £133m £172m -23% -22%

Profit before tax2 £108m £147m -27% n/a

Reported profit after tax £63m £106m - 41% n/a

Earnings per share2 31.5p 42.2p -25% n/a

Total GroupReported profit after tax £46m £53m -13% n/aReported earnings per share 17.6p 20.3p -13% n/aOperating cash flow2 £192m £54m 256% n/aDividend per share - 16.5p -100% n/aNet debt5 £1,167m £1,157m6 -£10m £56m

Divisional performance

H1 2020 Orders

-6%£724m H1 2020 Revenue

£653m -4%H1 2020 Adjusted operating profit2

£113m -4%

H1 2020 Orders

£247m H1 2020 Revenue

£257m H1 2020 Adjusted operating profit2

£42m

Minerals4 ESCO4

1. Total Incident Rate (TIR) represents the rate of any incident that causes an employee, visitor, contractor, or anyone working on behalf of Weir to require off-site medical treatment per 200,000 hours worked. 2. Profit figures adjusted to exclude exceptional items and intangibles amortisation. Operating cash flow (cash generated from operations) excludes additional pension contributions, exceptional items and income tax paid. Reported operating profit and profit before tax from continuing operations were £87.3m (2019: £130.7m) and

£62.5m (2019: £105.7m) respectively. Net cash generated from operating activities was £144.2m (2019: used in (£15.8m)).3. The Group financial highlights and divisional financial reviews include a mixture of GAAP measures and those which have been derived from our reported results in order to provide a useful basis for measuring our operational performance. Operating results are for continuing operations before exceptional items and intangibles

amortisation as provided in the Consolidated Income Statement. Details of alternative performance measures are provided in note 1 (e) of the financial statements. Continuing operations excludes the Flow Control division which was sold in June 2019. 4. 2019 restated at H1 2020 average exchange rates. 5. Net Debt includes IFRS 16: Leases of £188.8m (31 December 2019: £185.0m).6. Net Debt at 31 December 2019.

- Minerals orders4 -6%; AM -4% against record high H1 19, +7% sequentially on H2 19

- ESCO orders4 -17%; Covid-19 disruption to infrastructure and mining de-stocking

H1 2020 Orders

£170m -50%H1 2020 Revenue

-48%£185m H1 2020 Adjusted operating loss2

£(4)m -114%

-17%

-10%

+2%

Core mining technology businesses demonstrate strength and resillience 2020 Half Year

Results

Oil & Gas4

How we create value: strong and resilient business model

A simpler, stronger, higher-quality Weir

Comprehensive global support

Mission critical solutions

Highly engineered equipment

Group revenues by Division %

Intensive aftermarket care

Experienced leadership

John was appointed Chief Financial Officer in October 2016. He first joined the Group as Group Financial Controller in 2008 and was Interim Group Finance Director in 2009-2010.

He has held a number of senior roles across the organisation, including Managing Director of Valves in the former Power & Industrial division, and Divisional Managing Director of Weir Flow Control.

John is a Chartered Accountant and a member of the Institute of Chartered Accountants of Scotland.

Jon was appointed Chief Executive Officer in October 2016. He originally joined the Board in 2010 as the Group’s Finance Director.

Before Weir, Jon was a partner with EY, one of the world’s largest professional services companies, where he led global board-level relationships with a number of FTSE 100 multinational companies.

Jon is a Chartered Accountant and a member of the Institute of Chartered Accountants in England and Wales.

Jon StantonChief Executive Officer

John Heasley Chief Financial Officer

#1 in centrifugal slurry handling

Unrivalled service network

Engineering the mine of the future

#1 in ground engaging tools

Strong distributor network

Developing next generation technology

Minerals ESCO

Original Equipment 22%

Aftermarket 78%

Oil & Gas 17%

Minerals 60%

#1 in pressure pumping

Excellent materials science

Engineering the frack site of the future

Oil & Gas

ESCO 23%

Aftermarket intensive applications - revenues by OE/AM %

2020 Half Year Results

2019 Full Year Results

Mining-focused portfolio delivers a strong performance

Core mining technology businesses demonstrate strength and resillience