BRUSSELS (Reuters) - Six weeks after Pakistan was ravaged by floods, the European Union is still struggling to decide how to help beyond emergency aid, with a plan to offer lucrative trade concessions locked in dispute. Last month, the EUs foreign affairs chief, Catherine Ashton, urged member states to consider granting Pakistan more favourable trade terms as a means to support its economy and shore up the leadership of President Asif Ali Zardari in the struggle against militancy. Britain and Germany two of the EUs most powerful countries have strongly backed the proposal. But it is now bogged down in disagreement over how it could be implemented, the impact it would have on India and other trade partners and, critical for several EU members, the impact it would have on industries that compete with Pakistan exports. Ashton will again raise the issue with EU foreign ministers at a meeting in Brussels on Friday, aiming to secure a general agreement that can be put to EU leaders at a September 16 summit. But ahead of Fridays meeting it remains far from clear that an agreement can be reached, with trade, aid and foreign affairs diplomats at odds over the details, even if all are agreed that they would like to do something to help Pakistan. The proposals are there on the table, its just a question of whether everyone can agree how to help, said an EU diplomat involved in the talks, emphasising that a deal was critical to the EU maintaining credibility and influence in the region. What is clear is that any deal is likely to be far short of what Ashton had originally hoped for a move to grant Pakistan access to the EUs enhanced trade status for developing states, known as the Generalised System of Preferences-Plus (GSP+). That is something Pakistan has long coveted, but does not qualify for on at least two counts. First, its exports to the EU, worth 3.02 billion euros (2.48 billion pounds) in 2009, are already too large, and secondly it has not met the human rights and good-governance criteria that usually go along with GSP+. Instead, two possibilities remain: * Unilaterally suspending or reducing tariffs on Pakistani imports for a fixed period via a special World Trade Organisation waiver * Suspending duties on a range of products that Pakistan produces, which would at the same time benefit other countries that produce the same goods EU COMPROMISE The first possibility, which was previously granted to Pakistan after the September 11, 2001 attacks in recognition of its role as an ally in the war in Afghanistan, is strongly opposed by trade officials as it is likely to lead to staunch opposition from India and extensive litigation within the WTO. The second option may win more support, but the list of products on which duties would be waived is expected to be very limited, diplomats say, and would not include bed linen or ethanol, two major, high-value Pakistani exports. According to an internal EU document seen by Reuters, a unilateral suspension or reduction of tariffs could be worth up to 1.0 billion euros a year for Pakistan, whereas suspending duties on a few products might only generate gains of 50-60 million euros a year over a fixed three-year period. Human rights and aid groups are pressing the EU to reach an agreement at Fridays meeting and move quickly to provide extra aid to Pakistan, which is still reeling from the massive floods, with more than 20 million people affected.