Mobvista : VOLUNTARY ANNOUNCEMENT - OPEN LETTER FROM THE CHIEF EXECUTIVE OFFICER IN CONNECTION WITH THE ACQUISITION OF REYUN

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

Mobvista Inc.

匯量科技有限公司

(Incorporated in the Cayman Islands with limited liability)

(Stock code: 1860)

VOLUNTARY ANNOUNCEMENT

OPEN LETTER FROM THE CHIEF EXECUTIVE OFFICER IN CONNECTION WITH THE ACQUISITION OF REYUN

This announcement is made by Mobvista Inc. (the "Company" or "Mobvista") on a voluntary basis. Reference is made to the announcement of the Company dated 28 April 2021 in relation to the acquisition of Beijing Reyun Technology Co., Ltd. ("Reyun").

The Company was launched in 2013 with the vision to build an ecosystem of tools and technologies that would power the growth of global app developers, bridging Eastern and Western markets. In 2015, we began the development of Mintegral, a programmatic interactive mobile advertising platform; today, Mintegral has become one of the top global mobile advertising platforms. In 2016, we added more capabilities through the acquisitions of Nativex, the US-based mobile advertising company, and GameAnalytics, a European game data analytics platform, accelerating our business expansion in Europe and America. In 2019, we focused on building "a SaaS Tooling Ecosystem", offering a complete suite of unified technologies and products that help companies of all sizes, from large enterprises to small start-ups. The ecosystem looks at providing everything from data analytics, user growth and monetization technologies to cloud cost optimization. At every stage in our customer's growth, Mobvista is there to help.

Today I am happy to share news of a new addition to our growing ecosystem. Mobvista has entered into an agreement to acquire Reyun, a leading Chinese third-party mobile measurement and marketing technology company. After the completion of the acquisition, Reyun will become a wholly-owned subsidiary of Mobvista, while still operating as an independent brand. Reyun's market-leading technologies add another powerful component to our growing ecosystem of SaaS tools, providing full-stack mobile marketing SaaS solutions for global developers looking to enter the Chinese market.

- 1 -

Since its foundation in November 2013, Reyun has offered developers a wide range of products and technologies for robust marketing including data analytics, mobile measurement, campaign management, creative insights, and fraud protection, meeting customers' needs across their entire value chain and product life cycle.

Currently, Reyun analyses data from more than 700 million active devices each month, and its products are trusted by thousands of Chinese mobile companies spanning across verticals including gaming, social networking, finance, e-commerce, education, live broadcasting, life services, and mobile network operators.

To grow and thrive in the post-pandemic world, businesses need to compete with one another on a global level - an area our products and technologies are designed for at their core. As developers look to expand into global markets, they can only win in the long run if they possess scalable global solutions. Mobvista continues to help companies across 85 countries grow globally, and Reyun increases our ability to help global developers explore the Chinese market. The acquisition of Reyun will further emphasize our goal to bridge the Eastern and Western markets.

Data privacy needs to be at the heart of a healthy and successful advertising industry. That means our customers need tools that will drive their digital growth in a way which is privacy-centric. Data which is scattered across different platforms will need to be collected, secured, and processed. Independent, third-party platforms with full-stack service capabilities are well-placed to address this. In addition to this, industry-wide consolidations will become a norm under this new landscape.

Reyun's mission has always been to 'simplify marketing'. This is also reflected in Reyun's product philosophy and team culture, which Mobvista admires and shares, as 'simple and trustworthy' are also values that Mobvista upholds. At a time when the changes brought on by Apple's iOS 14.5 update send the global mobile marketing industry into upheaval, It is a great opportunity for Mobvista to step in and help developers lead through uncertainty, offering certainty with simple solutions that "just work". With the continued dedication of our incredible, passionate team I am full of optimism that, whatever the challenges ahead, we and our new partners at Reyun can find the opportunities to succeed and grow.

By order of the Board

Mobvista Inc.

CAO XIAOHUAN

Co-founder and Chief Executive Officer

Guangzhou, PRC, 28 April 2021

As at the date of this announcement, the Board comprises Mr. DUAN Wei (Chairman), Mr. CAO Xiaohuan (Chief Executive Officer), Mr. FANG Zikai and Mr. SONG Xiaofei as executive directors; Mr. WONG Tak- Wai as a non-executive director; and Mr. YING Lei, Mr. HU Jie and Mr. SUN Hongbin as independent non-executive directors.

- 2 -