"Oriental Citigroup Securities Co., Ltd. on the Issuance Sponsorship Letter for the Initial Public Offering and Listing on the Growth Enterprise Market of Jiangsu Tianchang Composite Materials Co., Ltd."

1. Basic Information on the Securities Issuance

(1) Sponsor Representatives

Zhang Zhong: Senior Business Director of the Investment Banking Department at Oriental Citigroup Securities Co., Ltd., with a Master's degree in Economics and extensive experience in investment banking. He has participated in various IPO projects including Shandong Meichen Technology Co., Ltd. and others.

Ge Shaozheng: Current Executive General Manager of the Investment Banking Department at Oriental Citigroup, with 14 years of experience in investment banking. He has been involved in several securities underwriting projects.

(2) Project Coordinators and Other Team Members

1. Project Coordinator Gu Lishan: Business Director of the Investment Banking Department at Oriental Citigroup, with a Master's degree in Economics and experience in IPO projects.
2. Other team members include Huang Wan, Yan Sihua, Bian Jiazhen, Wang Ziwen, and Liu Wei.

(3) Basic Information of the Issuer

Company Name: Jiangsu Tianchang Composite Materials Co., Ltd. Legal Representative: Chen Meicheng Registered Capital: RMB 90 million Establishment Date: March 24, 2008 Company Registration Date: December 22, 2010 Registered Address: No. 3, Tenglong Road, Wujin Economic Development Zone, Changzhou, Jiangsu Province Contact Number: 0519-83180563 Fax: 0519-81687889 Website: http://www.ctc-tf.cn/ Email: INFO@ctc-tf.com Business Scope: Research and development, production, and sales of multi-dimensional woven composite materials; technical services related to composite materials; leasing of owned equipment; research, manufacturing, and sales of wind power core materials; domestic procurement, wholesale, and import/export of fiberglass and carbon fiber products.

(4) Relationship Between the Issuer and the Sponsor

1. The sponsor or its controlling shareholders, actual controllers, and significant related parties do not hold shares in the issuer or its controlling shareholders, actual controllers, or significant related parties.
2. The issuer or its controlling shareholders, actual controllers, and significant related parties do not hold shares in the sponsor or its controlling shareholders, actual controllers, or significant related parties.
3. The sponsor's representatives and their spouses, directors, supervisors, and senior management do not have rights in the issuer or hold positions in the issuer.
4. There are no mutual guarantees or financing arrangements between the sponsor's controlling shareholders, actual controllers, significant related parties, and the issuer's controlling shareholders, actual controllers, significant related parties.
5. There are no other related relationships between the sponsor and the issuer.

(5) Internal Review Procedures and Opinions of the Sponsor

1. Internal Review Procedures of Oriental Citigroup:

   • The Quality Control Department conducts on-site verification at the issuer's location and issues a verification report.
   • The project team submits an internal review application, which is approved by the Quality Control Department.
   • The Quality Control Department sends internal review materials to all committee members five working days before the meeting.
   • The internal review meeting is chaired by the head of the internal review or a designated member, and the Quality Control Department records and organizes the meeting.
   • Feedback from the internal review is provided to the project team, which must respond in writing and amend the application materials as necessary.

2. Internal Review Opinion of Oriental Citigroup: The sponsor has conducted due diligence and verified the issuer's application documents and related materials, ensuring compliance with laws and regulations. The project team submitted application materials as of March 31, 2015, and the sponsor agreed to report the findings to the China Securities Regulatory Commission after addressing any inquiries.