Owners of aborted property projects in Shenzhen have vowed to take their protests to President Jiang Zemin.
They will also petition Shenzhen authorities for the release of investors arrested following an attempt to get the mayor to take up their case.
The group, who clashed with Shenzhen police during a rally there on Monday, accuse the officers of using excessive force.
Ten of the 200 protesters, mostly Hong Kong residents, were carried away by riot police after a four-hour standoff outside the Shenzhen Municipal Government Offices headquarters.
But the Mainland Problematic Property Mutual Aid Association vowed to take the protest to Mr Jiang.
Their spokesman, Lee Yip-king, said: 'We were shocked that they used force to suppress our peaceful petition. They dragged some of us away.
'Two of the protesters are still being held. We hope the Shenzhen police can release them. They were only exercising their civil rights to express their views.' Ms Lee said they were disappointed by Shenzhen's handling of their complaints and said they would write to the Guangdong provincial Government.