Yes this is one step towards complete EV by Tata.
In October 2021 Tata chemical news came that it will be selling its soda Ash unit in USA for $ 1 Bn
Now this news that they are in talks to buy UK company which Is into EV battery
One interesting point noted is as below:
The JOHNSON MATHEW IS Also a leading maker of pollution-reducing catalytic converters had invested millions of dollars on developing the eLNO cathode – a crucial component of an electric car’s battery that would cut the consumption of cobalt -