Contact Us

The symposium will be held at the Shanghai Astronomical Observatory, Chinese Academy of Sciences, located at 80 Nandan Road, Xuhui District, Shanghai, China.

For questions regarding registration, abstract submission, poster submission, accommodation, local arrangements, or other practical matters, please contact the local organizing committee. Participants who need assistance with hotel reservation or travel-related information are encouraged to contact the organizers in advance.

Invitation Letter for Visa Application

Participants who require an official invitation letter for visa application purposes should contact the organizing committee as early as possible. To prepare a formal invitation letter through CAS/SHAO, please provide the following information:

• Full name as shown in the passport
• Affiliation and position/title
• Nationality
• Passport number
• Passport validity period
• A scanned copy of the passport information page
• Planned dates of visit to China
• The Chinese embassy, consulate, or Chinese Visa Application Service Center where the visa application will be submitted
• Contact email

Please note that the invitation letter is intended to support the visa application process. Participants are responsible for checking the visa requirements and submitting their visa applications in accordance with the rules of the relevant Chinese embassy, consulate, or visa center.

Visa-free Entry Guidance

China currently implements a 30-day visa-free entry policy for ordinary passport holders from a number of countries for purposes including business, tourism, family or friends visits, exchange, and transit. According to the National Immigration Administration of China, ordinary passport holders from eligible countries may enter China visa-free for stays of up to 30 days, and the stay period is calculated from 00:00 on the day following the date of entry.

According to official Chinese embassy FAQ information updated in 2026, the eligible countries include the following 50 countries: Brunei, France, Germany, Italy, Spain, the Netherlands, Switzerland, Ireland, Hungary, Austria, Belgium, Luxembourg, New Zealand, Australia, Poland, Portugal, Greece, Cyprus, Slovenia, Slovakia, Norway, Finland, Denmark, Iceland, Andorra, Monaco, Liechtenstein, Republic of Korea, Bulgaria, Romania, Croatia, Montenegro, North Macedonia, Malta, Estonia, Latvia, Japan, Brazil, Argentina, Chile, Peru, Uruguay, Saudi Arabia, Oman, Kuwait, Bahrain, Russia, Sweden, Canada, and the United Kingdom.

Participants from visa-free countries are still strongly advised to check the latest visa policy before departure, as eligibility, duration, purpose of visit, passport type, and implementation period may change. Participants who do not meet the visa-free conditions should apply for an appropriate Chinese visa before traveling. The official FAQ states that the visa waiver for Brunei has no expiry date, Russia’s policy remains effective until December 31, 2027, and the other listed countries are currently covered until December 31, 2026.

For the latest official information, please consult the websites of the Ministry of Foreign Affairs of the People’s Republic of China, the National Immigration Administration of China, or the Chinese embassy/consulate in your country.

Contact persons

Shilong Liao
Shanghai Astronomical Observatory, Chinese Academy of Sciences
Email: shilongliao@shao.ac.cn

Phone: +86 13641860211

Qiqi Wu
Shanghai Astronomical Observatory, Chinese Academy of Sciences
Email: wuqiqi@shao.ac.cn

Phone: +86 15296769027

Shaohong Zhang
Shanghai Astronomical Observatory, Chinese Academy of Sciences
Email: zhangshaohong@shao.ac.cn

Phone: +86 18101845618

Local Organizing Committee
Shilong Liao, Zhenghong Tang, Qiqi Wu, Shaohong Zhang, Ye Ding