Poland, a European Union member but outside the euro zone, warned on Tuesday it could not sign up to the bloc's new treaty on tighter fiscal rules if it is not allowed to take part in meetings of the single-currency states, Reuters reported. European leaders are expected to sign off on the treaty at a summit on Jan. 30 to enforce stricter budget controls mainly in the debt-stricken euro zone, but Prime Minister Donald Tusk said Warsaw was seeking concessions: "If Poland does not win an appropriate status of participant in the euro zone meetings, which would give us a feeling that we take part in the decision-making process (...) we will find it difficult to sign the fiscal pact," Tusk said. "We will not accept such a model." Tusk may be facing an uphill battle as France strongly opposes allowing non-euro states to attend the single currency area meetings. -- SPA