Taiwan investors' legitimate rights and interests on the Chinese mainland were being effectively protected, a mainland spokeswoman on Taiwan affairs said Wednesday.

Moreover, the two sides of the Strait have reached a broad consensus on a cross-Strait investment protection agreement, Fan Liqing, spokeswoman for the State Council's Taiwan Affairs Office, said at a press conference.

The mainland will always take a positive attitude towards the signing of such an agreement, Fan said.

Fan refuted previous claims that disputes involving violations of Taiwan business owners' rights on the mainland were not being properly resolved.

Between 2000 and 2010, the government and the Taiwan affairs authorities at all levels on the mainland received 28,215 cases of complaints and requests for help from Taiwan compatriots. About 85.4 percent of the cases have been resolved, and the authorities were working to deal with the rest, Fan said.

When answering a reporter's question about a case of a Taiwan businessman Shen Po-sheng, who claimed that he was swindled out of his investment on the mainland, Fan said that the business disputes had been resolved in accordance with the law.

Earlier this month, Shen told a press conference in Taiwan that he was cheated after he invested in Tianjin 20 years ago, and that several of his complaints against entities on the mainland had been dismissed.

According to the report from relevant authorities of Tianjin, Shen had invested 750,000 U.S. dollars in a venture in Tianjin, but it had failed due to disputes with other partners.

The municipal government in Tianjin have attached great importance to the case and managed to solve the dispute through mediation, and his partners in Tianjin have paid Shen 16 million yuan (2.46 million U.S at the exchange of time) in reimbursement, Fan said.

Fan said she was concerned that political maneuvering in Taiwan had stirred up this "simple business dispute."