EXHIBIT 99.8
Joint Filing Agreement
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing of a Statement on Schedule 13D (including any and all additional amendments thereto) with respect to the Class B Ordinary Shares of Gridsum Holding Inc. and further agree that this Joint Filing Agreement be included as an Exhibit thereto. In evidence thereof, the undersigned, being duly authorized, have executed this Joint Filing Agreement this 26th day of October, 2020.
FutureX Innovation SPC (on behalf of and for
the account of New Technology Fund II SP as
one of its segregated portfolios)
By: /s/ ZHANG Qian
Name: ZHANG Qian
Title: Director
FutureX Capital Limited
By: /s/ ZHANG Qian
Name: ZHANG Qian
Title: Director
FutureX Fund Management (Hong Kong) Limited
By: /s/ ZHANG Qian
Name: ZHANG Qian
Title: Director
FutureX Asset Management Limited
By: /s/ ZHANG Qian
Name: ZHANG Qian
Title: Director
/s/ ZHANG Qian
ZHANG Qian
[Signature Page to Joint Filing Agreement – Gridsum Holding Inc.]