Britain will next week formally apply to join a trans-Pacific trading bloc of 11 countries, with negotiations set to start later this year, the government has said.Since leaving the European Union, Britain has made clear its desire to join the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP), which removes most tariffs between Australia, Brunei, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore and Vietnam.”One year after our departure for the EU we are forging new partnerships that will bring enormous economic benefits for the people of Britain,” Prime Minister Boris Johnson said in a statement.Trade minister Liz Truss told Times Radio: “On Monday I am putting in the letter of intent” and that she expected formal negotiations will start in the spring.Reuters reported on Thursday that Britain will not publish an assessment of the economic benefits of CPTPP membership before requesting to join it – contrary to earlier …