This is a global question, so I will try to give you a broad answer. Looking at the specifications, you will notice that whether it is Euro VI, a Bharat stage VI, or a China VI, the specifications are similar with minor variations. All of them are attempting to get to the 10 ppm (parts per million) level for the sulfur while trying to reduce aromatics and olefins in the fuel. This is the general intent of all the specifications and changes happening globally.
Read more