*Publication* Accepted papers of CSTE 2021 (after proper registration and presentation) will be collected in the conference proceedings, which will be submitted for indexing in Ei Compendex, Scopus, etc. *Submission* 1. Full paper(publication and presentation) 2. Abstract (presentation only without publication) 3. Length: Each paper should have 8 pages, including all figures, tables, and references. When it exceeds 10 pages, each additional page will be chargeable. 1)Submit paper via online system: http://confsys.iconf.org/submission/cste2021 2)Submit paper via email: This email address is being protected from spambots. You need JavaScript enabled to view it. details about submission, please visit at http://cste.net/submission.html