The TiSA negotiations between the US, EU, Australia and about 20 other mostly industrialised countries began in 2013. The negotiations were driven by global services corporations which want to deregulate trade in services further than what could be achieved through the World Trade Organisation. The negotiations were suspended in 2016 when the US Trump government withdrew from them. See background here and leaked documents here.
Major issues: secrecy, restrictions on government regulation of services, data regulation, expansion of foreign investment in competitive tendering, pressure for privatisation of services.