Caadan, Julius G., Surigao State College of Technology (Philippines)
Cablinda, Ronelo G., Misamis Oriental State College of Agriculture and Technology (Philippines)
Calihat, Arcze Vell B., Tandag National Science High School (Philippines)
Candia Jr., Jose Q., North Eastern Mindanao State University - Tagbina Campus (Philippines)
Candia, Jr., Jose Q., Surigao del Sur State University-Tagbina Campus (Philippines)
Capuyan, Zailah Friah T., Tandag National Science High School (Philippines)
Casas, Jupiter V., Central Mindanao University, Bukidnon (Philippines)
Cataluňa, Magdalena P., Western Visayas University- Calinog Campus (Philippines)
Catamin, Remedios D., Western Visayas University- Calinog Campus (Philippines)
Catamin, Remedios D., West Visayas State University Calinog Campus (Philippines)
Cerado, Ernie C.
Cespon, Mechaella -, Tandag National Science High School (Philippines)
Ciasico, Mercedes C., Western Visayas University- Calinog Campus (Philippines)
Connolly, Luz, Kintore Street School (Australia)
Contreras, Rosario Clarabel C., Western Visayas University- Calinog Campus (Philippines)
Contreras, Rosario Clarabel C., West Visayas State University Calinog Campus (Philippines)
Contreras, Rosario Clarabel C., West Visayas State University - Calinog Campus (Philippines)
Corig, Jelly B., North Eastern Mindanao State University (Philippines)
Cortez, Mark Vincent T., Agusan del Sur State College of Agriculture and Technology (Philippines)
Cortez, Mark Vincent T.
Creencia, Glenn Bryan A., Cavite State University (Philippines)
Creencia, Glenn Bryan A.
Cruz, Sathya -, Tandag National Science High School (Philippines)
Cuarteros, Kennet G., University of Science and Technology of Southern Philippines (Philippines)