China Online Education (COE) SC 13G China Online Education Group

Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Persons (as such term is defined in the Schedule 13G referred to below) on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the shares of Class A ordinary shares, par value of $0.0001 per share, of China Online Education Group, a Cayman Islands company, and that this Agreement may be included as an Exhibit to such joint filing. This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of February 1, 2019.

[Signature Page to Joint Filing Agreement]

Dated: February 1, 2019
Shunwei Technology Limited	By:	/s/ Tuck Lye Koh
	Name:	Tuck Lye Koh
	Title:	Director
Shunwei China Internet Fund, L.P.	By:	/s/ Tuck Lye Koh
	Name:	Tuck Lye Koh
	Title:	Director
Shunwei Capital Partners GP, L.P.	By:	/s/ Tuck Lye Koh
	Name:	Tuck Lye Koh
	Title:	Director
Shunwei Capital Partners GP Limited	By:	/s/ Tuck Lye Koh
	Name:	Tuck Lye Koh
	Title:	Director
Tuck Lye Koh		/s/ Tuck Lye Koh

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