Delight Reward SC 13D/A Keyuan Petrochemicals, Inc.

Exhibit 7.1

JOINT FILING AGREEMENT

The undersigned agree that this Amendment No. 2 to Schedule 13D, and any amendments hereto, relating to the shares of common stock, par value $0.001 per share, of Keyuan Petrochemicals, Inc. shall be filed on behalf of the undersigned.

December 21, 2016
Delight Reward Limited
By:	/s/ Chunfeng Tao
Name:	Chunfeng Tao
Title:	Director
XinKe Petrochemicals Inc.
By:	/s/ Chunfeng Tao
Name:	Chunfeng Tao
Title:	President, CEO, CFO & Secretary

Apex Smart Limited
By:	/s/ Chunfeng Tao
Name:	Chunfeng Tao
Title:	Director

/s/ Chunfeng Tao

Chunfeng Tao

/s/ Zhang Guo Qiang

Zhang Guo Qiang

/s/ Zhu Yingdong

Zhu Yingdong

/s/ Chen Haiping

Chen Haiping

/s/ Feng Jianfen

Feng Jianfen

/s/ Chen Qiaoyun

Chen Qiaoyun

/s/ Wu Youshui

WuYoushui

/s/ Liu Feng

Liu Feng