At present, China's photovoltaic industry patents and exports ranked first in the world, while China's photovoltaic industry has suffered from Europe and the United States "double reverse" sanctions and blockade, the situation is very difficult, and its development can not be separated from the progress of domestic science and technology and policy support. This paper collates the three crises and breakthroughs that China's photovoltaic industry has experienced. The innovation of this paper is to analyze the reasons why China's photovoltaic industry can fight back from the upstream, midstream and downstream characteristics of the industry chain theory, and summarize China's photovoltaic industry's successful experience based on the theory of Porter's diamond model, which provides a certain reference significance to the other industries that are still under the U.S. trade sanction. At the same time, this paper uses pest model to analyze the reasons for Biden's emergency tariff exemption this year, combined with the status quo of photovoltaic development, to analyze the current challenges and coping strategies. Finally, it puts forward policy suggestions for the development of PV and other fields.

Xiuling Hu. From "Double-reverse" Policies to Exemptions from Tariffs in States of Emergency-Chinese Photovoltaic Industry's Experience and Future Thoughts. International Journal of Social Sciences and Economic Management (2023), Vol. 4, Issue 1: 88-96. https://doi.org/10.38007/IJSSEM.2023.040110.

[1] Ball J, Reicher D, Sun X, et al. The New Solar System: Chinas Evolving Solar Industry and Its Implications for Competitive Solar Power in the United States and the World R. USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S), 2017-03-08.

[2] Blonigen B A, Prusa T J. Dumping and Antidumping Duties. NBER Working Paper Series, 2015, 21573.

[3] Mans U. Tracking Geographies of Sustainability Transitions:Relational and Territorial Aspects of Urban Policies in Casablanca and Cape Town. Geoforum, 2014, 57: 150 - 161.

[4] Chen Xiaoqian, Chen Yong. PEST analysis of factors influencing the trade of forest products between China and Central and Eastern European countries. Western Forestry Science, 2022,51(03):165-172.

[5] Cao Ping, Xiao Sheng peng, Lin Changqing. Reassessment of U.S. Anti-Dumping Effects on Innovation of Chinese Enterprises. International Economic and Trade Exploration, 2021,37(01):34-49.

[6] Geng Zhe, Chen Feng, Su Ying. Competitive intelligence demand analysis of solar photovoltaic enterprises under the perspective of industrial chain. Journal of Intelligence, 2016,35(08):76-82.

[7] Sun Jing. Research on the international trade competitiveness of China's solar photovoltaic industry. Price Monthly, 2017(12):32-36.

[8] Tan Na, Gao Gaofeng, He Chuantian. Trade Frictions and Chinese Firms' Exports--A Perspective Based on Supplier Relationships. International Trade Issues, 2022(09):35-52.

[9] Wang Hongwei, Zhu Xueding, Li Ping. The impact of government subsidies on innovation in the photovoltaic industry. Economic Management, 2022,44(02):57-72.

[10] Xu Jiayun, Zhang Junmei, Liu Zhuqing. Experiencing anti-dumping and the export behavior of multi-product firms I Evidence from the Chinese manufacturing industry. Financial Research, 2021(5):97-116.