On 27 September 2019, the heads of two of Eurostar's major shareholders, Guillaume Pepy of SNCF, and the chair of SNCB Sophie Dutordoir [fr; nl], publicised that Eurostar was planning to come together with its sister company the Franco-Belgian transnational rail service Thalys.[45][46] The arrangement is to merge their operations under the working title of "Green Speed" and expand services outside the core London-Paris-Brussels-Amsterdam service, to create a grand Western European high-speed rail service covering the UK, France, Belgium, the Netherlands and Germany, serving up to 30 million customers by 2030.[47]