Harini Perera (Female) - Completed bachelor of biological science degree at Ruhuna university. Subject combinations were chemistry, physics and zoology

Sisira Jayamini (Male) - B.Sc / M.Sc (Reading), Dip. in English, 15 years experience in Government School

Nadun Ubeysinghe (Male) - An enthusiastic Chemist who loves to teach students about the chemical reactions that are involved in the universe

Isini Perera (Female) - Bsc. (Hons) in Chemistry, University of Colombo, Diploma in Advanced Chemistry, Institute of Chemistry Ceylon

Advanced Level online Chemistry paper classes

Assamith AMM (Male) - Following Medical degree at University of Colombo

Susantha Mudalige (Male) - BSc special, MSc, Over 20 years experience in tuition teaching

Expertexon - A distinguished higher educational institution dedicated to shaping the minds of tomorrow

Yugan Maleesha (Male) - A final year undergraduate student at the Faculty of Medicine, University of Colombo, Over 5 years teaching experience

Niroshan Darshana (Male) - B.Sc Chemistry, University Of Sri Jayawardhanepura

Classes conducted by a National School Teacher

Madushanka Gamage (Male) - Undergraduate - BSc Hons - University of Peradeniya

Indrajith Sudusinghe (Male) - Over 10 years of teaching experience, B.Sc / M.Sc University of Colombo

Pasindu Saranga (Male) - Undergraduate - University of Sri Jayewardenepura

Malith Nanayakkara (Male) - BSc (Hons) Undergraduate