I applied online. The process took 3 months. I interviewed at 3M (Loughborough, England) in Jan 2019
Interview
Submitted application online, then a telephone interview then weeks later got into an assessment centre, which included two interview and presentation. from 10-4pm.
a technical and normal interview
Could present on one of the given topics to the employers.
Interview questions [1]
Question 1
Why do you want to work in 3M?
looked through my CV