Dear Mukund A Patil

Indeed, according to https://www.sciencedirect.com/journal/materials-today-proceedings the title is discontinued. To be more precise: not just the indexing in Scopus is discontinued but the journal title stopped publishing end of 2024.

I think there are numerous reasons why:

-This title has a long history of issues, see for example my reply of September 15th, 2021 here https://www.researchgate.net/post/If_a_paper_is_published_in_a_journal_via_conference_does_it_count_as_a_conference_paper_or_a_journal_paper One obvious red flag is the exponential growth since 2016 in accepted and published papers as is evident when looking at the Scopus content coverage https://www.scopus.com/sourceid/21100370037

-Mass retractions happened. See for example https://www.chemistryworld.com/news/materials-science-journal-withdraws-500-papers-from-fake-conferences/4016504.article

-Another good read discussing the various issues can be found here https://jamesheathers.medium.com/publication-laundering-95c4888afd21 it mentions “IOP Conference Series: Materials Science & Engineering” https://www.scopus.com/sourceid/19700200831 as well and the same happened: it is discontinued. Indicating that this way of publishing (in combination with the high volume of submissions) is not sustainable in terms of maintaining scientific rigor

-The economic/commercial reason is most likely that Elsevier realized that restoring (and maintaining) the scientific rigor requires too many resources (in terms of staff and costs) that it is no longer economical feasible

To put it a bit more positive, this proceeding (it has never been a journal) is the victim of its own success: it turned out that they could not cope with the exponential growth in demand for publication.

Best regards.

Rob Keller Thank you sir for your reply.

However, both titles proved to be highly beneficial for young researchers.