Exhibit 1
JOINT FILING AGREEMENT
The undersigned agree that this Schedule 13D, and any amendments hereto, relating to the Class A ordinary shares, par value of US$0.0001 per share and Class B ordinary shares, par value of US$0.0001 per share of Lianhe Sowell International Group Ltd, a Cayman Islands company whose principal place of business is in Shenzhen, Guangdong Province, China, shall be filed on behalf of the undersigned.
April 16, 2026
| Yue Zhu | ||
| /s/ Yue Zhu | ||
| Name: Yue Zhu | ||
| Lianyue Holding Limited | ||
| /s/ Yue Zhu | ||
| Name: | Yue Zhu | |
| Title: | Director | |