After he revealed his assets, several local officials including Su Zhijia, chairman of Guangzhou political consultative conference committee, also expressed their willingness to publicize their families' assets.
"We should not wait for a city-wide implementation of the reporting system. If it had been put into operation earlier, there wouldn't be so many officials involved in corruption in the past few years," he said.
"As an official, I have fulfilled my responsibility by reporting my family's assets. I am going to retire soon and I will be happy when more officials follow the practice."
In his proposal, Fan also asked retired officials to be included in the reporting system.
"From the previous corruption cases, we can see that some officials have illegally earned a lot after retirement," Fan said.
"Their relatives' assets should also be publicized as some officials will transfer their illegal income to family members."
In response to Fan's proposal, Cao Jianliao, deputy mayor of Guangzhou, said he would follow suit.
"I would like to publicize my family's assets if the authorities require officials to do so," Cao said.
A group of officials from Guangzhou have been sent to Hong Kong and Macao to learn from their successful practices in disclosing officials' assets, according to Wang Xiaoling, head of the city's Party anti-graft body.
Some officials in the city's Nansha district are required to report family assets to the Party's supervision agencies after Spring Festival, which falls on Feb 10.
Wang said that not all of the district's officials are required to report their assets.
"We will learn from the practices in Hong Kong and Macao, where only around 40 percent of departments require their officials to report their assets," she added.
Under the current proposal, such information will be reported to the Party's anti-graft authorities rather than disclosed to the public, she said.
Shi Jishan, head of the Party's anti-graft body in Changchun, doubted officials could voluntarily report their assets in an honest manner.
"In the past, most officials who have been found guilty of corruption refused to admit their wrongdoing," he said. "So it would be impossible for all officials to voluntarily reveal their assets."
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