13 September 2021

Mobile Streams plc

("MOS" or "the Company")

Streams and Quanta launching LiveScores service in Argentina.

Mobile Streams plc, the AIM quoted mobile content and data intelligence company, is delighted to announce that in partnership with Quanta Media Group ("QMG") the Company will be launching its LiveScores football 365 service in Argentina. The service is set to go live on 1 October 2021 and is expected to generate significant revenue for MOS over the next 3 years.

Income is generated for MOS through a mixture of affiliate revenue share with Quanta and subscription payments via the current MOS billing contract with Movistar. It is estimated that the vast majority of revenue generated from the Argentina service will be from affiliate revenue share. Affiliate revenue occurs when a lead generated from the LiveScores service is sold to another organisation which will then market their service or product to the lead. All affiliate revenue share generated will be paid into the MOS UK account and therefore will not incur any currency related risks sometimes associated with the Argentinian market. Additional revenue from telco subscription may also be generated and will be paid into the MOS Argentina account. As with the Company's successful launch in Mexico this service will utilise QMG content and the Streams delivery platform.

This next territory launch represents a further step in the Company's development, and we are currently in advanced discussions regarding further launches.

Andrew Deeks, CEO of QMG, said:

"Following on of from a successful Mexican launch we are delighted to be partnering with MOS again to launch in Argentina. We see this as a huge revenue opportunity. Additionally, we are also looking to launch similar services in other territories soon."

Nigel Burton, Non-Executive Director, said:

"We are delighted to be extending our partnership with Quanta into the Argentinian market. The combination of our Streams delivery platform and the Quanta content is already delivering great results in Mexico and we look forward to continuing this in Argentina.

This announcement contains inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) No. 596/2014, as it forms part of UK Domestic Law by virtue of the European Union (Withdrawal) Act 2018. Upon the publication of this announcement, this inside information is now considered to be in the public domain.

About Streams Data

The Streams Data business provides data insight, intelligence and visualisation services and marketing optimisation tools. The enterprise level bespoke service achieved first revenues in June 2020, and the Streams SaaS ("Software as a Service") self-service platform generated initial customer revenues in October 2020. Enterprise clients include The Economist and Quanta Media Group.

For further information, please contact:

Mobile Streams plc

Nigel Burton, Non-Executive Director

+44 77 8523 4447

www.mobilestreams.com

Beaumont Cornish (Nominated Adviser)

James Biddle and Roland Cornish

+44 (0) 20 7628 3396

Peterhouse Capital Limited (Broker)

Lucy Williams and Duncan Vasey

+44 (0) 20 7469 0930