Dearcustomers and partners,

Thankyou for your continued support and trust in Haitian Co., Ltd. (Stock Code:603759.SH) and its photovoltaic business unit.

Inorder to enhance brand consistency, we are pleased to announce that HaitianCo., Ltd. has officially completed the acquisition and integration of HeraeusPhotovoltaics. All former Heraeus Photovoltaics operations are now fullyintegrated into the 'Haitian Photovoltaics' brand system.

Aspart of this process, we are pleased to announce the following updates:

1.    Launch of new official website domain

Thenew domain, https://haitian603759.com, is now live. Visit thisdomain to access our latest product information, solutions and company updates.

Theold domain, heraeus-photovoltaics.cn, will cease to be available on 27October 2025. Please update your bookmarks and relevant links promptly to avoidfuture access issues.

2.    Official email domain suffix updated

Effectiveimmediately, we have adopted the new email suffix: @haitian603759.com.Please note this change and update your contact lists accordingly.

3.    Access support and real-time updates

Followour official WeChat account, 'Haitian Photovoltaic', to receive the latestproduct news, market insights and service support.

We are the same, yet more than ourselves. Haitian Photovoltaic is committed toproviding higher-performance metallization paste products for solar cells,innovative solutions and exceptional service.

'Makingsunlight more valuable' - Haitian Photovoltaic remains your trusted partner.

Thankyou once again for your understanding and support!

Bestregards,

HaitianPhotovoltaic (Shanghai) Co., Ltd.