18 October 2021

Mobile Streams plc

("MOS" or "the Company")

Streams and Quanta launching LiveScores service in Brazil

Mobile Streams plc, the AIM quoted mobile content and data intelligence company, is delighted to announce that in partnership with Quanta Media Group ("QMG" or "Quanta") it will be launching its LiveScores service in Brazil. The service will go live in early November.

Income is anticipated to be generated for MOS through affiliate revenue share with Quanta. Affiliate revenue occurs when a lead generated from the LiveScores service is sold to another organisation who will then market their service or product to the lead. All affiliate revenue share generated will then be paid into the MOS UK account and therefore will not incur any currency related risks. As with the Company's successful launches in Mexico and Argentina, this service will utilise Quanta content and the Streams delivery platform.

This next territory launch represents another step in the Company's development, and we are currently in advanced discussions regarding further launches. The Company will provide updates regarding take up of its services at the appropriate times.

Andrew Deeks, CEO of QMG, said:

"Following on of from successful Mexican and Argentinean launches we are delighted to be partnering with MOS again to launch in Brazil which has a huge addressable audience. We see this as a significant revenue opportunity. Additionally, we are also looking to launch additional services with Mobile Streams in other territories soon."

Nigel Burton, Non-Executive Director, said:

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

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, Duncan Vasey and Eran Zucker

+44 (0) 20 7469 0930