Gridsum Files Annual Report on Form 20-F for Fiscal Year 2017

BEIJING,Jan. 8,2019 --Gridsum Holding Inc.("Gridsum" or "Company") (Nasdaq: GSUM),a leading provider of cloud-based big-data analytics and artificial intelligence ("AI") solutions inChina,today announced that it filed its annual report on Form 20-F for the fiscal year endedDecember 31,2017with theU.S. Securities and Exchange Commission("SEC") onJanuary 7,2019.

The annual report can be accessed on the Company's investor relations website athttp://ir.gridsum.com/as well as theSEC'swebsite athttp://www.sec.gov. The Company will provide a hard copy of its annual report containing the audited consolidated financial statements,free of charge,to its shareholders and ADS holders upon request. Requests should be directed to the Company's investor relations department atir@gridsum.com.

AboutGridsum

Gridsum Holding Inc.(Nasdaq: GSUM) is a leading provider of cloud-basedbig-dataanalytics and AI solutions for multinational and domestic enterprises and government agencies inChina.Gridsum'score technology,theGridsum Big Data Platformand the Gridsum Prophet: Enterprise AI Engine,is built on a distributed computing framework and performs real-time multi-dimensional correlation analysis of both structured and unstructured data. This enablesGridsum'scustomers to identify complex relationships within their data and gain new insights that help them make better business decisions. The Company is named "Gridsum" to symbolize the combination of distributed computing (Grid) and analytics (sum). As a digital intelligence pioneer,the Company's mission is to help enterprises and government organizations inChinause data in new and powerful ways to make better informed decisions and be more productive.

For more information please visithttp://www.gridsum.com/.

Investor Relations

Gridsum

ir@gridsum.com

Christensen

InChina

Mr.Christian Arnell

Phone:+86-10-5900-1548

Email:carnell@christensenir.com

In U.S.

Mr.Tip Fleming

Phone: +1 917 412 3333

Email:tfleming@christensenir.com

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