The new ratings are not intended immediately to replace the old system dominated by Moody's, Standard & Poor's and Fitch, but to provide investors with more choices, Guan says.

Sean Egan, the president of Egan-Jones, says UCRG's near-term goal is to supplement the current ratings system.

"The current system is New York-centered. UCRG will bring the perspective of China and Russia to the table. That means UCRG will get different rating results from the big three," he says.

The new company is also willing to bring in new partners from different countries, he adds.

Dozens of companies have expressed interest in taking part, Guan says, but the "Big Three" will not be considered for membership because of a "divergence in principles and positions".

Hainsworth says the group will use a "dual credit rating system" that will let investors compare debt issuers both locally and globally.

"When you compare two companies within one country, a local member of the UCRG is able to do the job. But when comparing companies on a global level, for instance to compare an oil company in India and another one in Milwaukee, you'll need a global comparability. That's when UCRG will play a role," he says.

Fan Mingtai, head of the department of quantitative finance with the Chinese Academy of Social Sciences, a think tank, says a new force is needed to balance the global credit rating system.

If such a non-Western system could be established, it will first be accepted by the emerging markets, then may gain popularity in European and US markets, he says, adding that it is "essential for the new agency to develop its own rating theory and assessment indicator system".

"A system with no unique features wouldn't be much different from the old one and won't be accepted by authorities and investors."

Palacio says: "The key issue, in my opinion, is the ability of UCRG to garner the necessary level of trust as well as a solid stock of clients in order to attest to the acceptance of mainstream investors."

Above and beyond the need for more actors, it is essential to achieve greater transparency on methodology and pricing policy, boost independence and mitigate conflicts of interest, he says.

"These parameters would largely determine UCRG's reception in Europe, which has already taken steps to increase competition in the ratings market and break the virtual oligopoly of the Big Three."

On June 6, Dagong's European office became the first Asian credit rating agency to be approved by the European Securities and Markets Authorities for running credit rating businesses in Europe, allowing Dagong Europe to provide services in 27 EU member states.

Guan says: "China, as a major international creditor and an increasingly important global investor, needs to have its own credit rating agencies to provide reliable credit rating information in order to protect the creditor's interests.

"Meanwhile, the EU, as the world's biggest economy, possesses huge market demand for more comprehensive rating information, especially after the existing rating system failed to warn of the crisis."