| ORGANIZATIONAL AFFILIATIONS and Positions | |
| 1969 - late 1980s | Saturday Group active member |
| 1972 | Visual Arts in ALYANSA, concerned artists of the Philippines. |
| 1974 | Becomes a faculty member of the College of Fine Arts, University of the Philippines, Manila. He holds the post for a year. |
| 1983 | Artist-In-Residence post at the Far Eastern University, Manila. |
| 1984 | President of the Art Association of the Philippines. He revives AAP by creating chapters all over the country: Lakeshore, Bacolod, Iloilo, Davao and Cebu. Re-elected in 1987 and held position until 1988 |
| 1985 | Representative of the Visual Arts, UNESCO Commission on Culture, Manila, a position held until 1990. |
| 1990-92 | Vice President of the Society of Philippine Sculptors |
|
NATIONAL AND INTERNATIONAL AWARDS |
|
| 1968 | Tours India for a month as cultural visitor and university guest lecturer. The exposure infuses Castrillo with the cultural skeleton of an ancient culture of Asia as he consciously challenges the pervasive influences of western art. |
| 1970 | Receives the Thirteen Artists Awards from the Cultural Centre of the Philippines. |
| 1971 | Receives four prestigious awards: Republic Cultural Heritage Award, Araw ng Maynila Centennial Award, Outstanding Makati Resident Award and the Ten Outstanding Young Men Award. Philippine representative in Sculpture to the Paris Biennial. |
| 1974 | Receives the Outstanding Sta. Ana Resident Award. Visits Germany as cultural visitor and guest lecturer upon the invitation of the Federal Republic of Germany. He is the first Filipino sculptor to be given this grant. Becomes a faculty member of the College of Fine Arts, University of the Philippines, Manila. He holds the post for a year. |
| 1978 | Visits Australia as a cultural visitor and guest lecturer of the Australia government. |
| 1980 | Receives The Most Outstanding Son of Laguna Award sponsored by the Maduro Club in Biñan, Laguna and |
| 1981 | Receives the Outstanding Son of Laguna Award from the Laguna Lion’s Club. Sole Sculpture representative for the Philippine Independence Day Art Exhibition, Tag Arts Saudi, Jeddah, Saudi Arabia. |
| 1982 | Invited BY Japan Foundation to be guest and lecturer in Japan |
| 1986 | Represents the Philippines in Brunei Darussalam to the Fourth ASEAN Sculpture Square Workshop and Symposium. |
| 1990 | Cited by Carlos P. Romulo in his book, Outstanding Leaders of the Philippines. |
| 1992 | Receives a citation from the Karachi-based Asian Visual Reviewers Union (AVISU) for his distinguished contribution to the development of international cultural awareness. |
| 2007 | Received the Thomasian Meritous Award, given by the University of Sto. Tomas Alumni Association Inc. |
"Art will always contribute to the progress of any nation. Today there are no more bounderies...all fuse - product design, popular music, serious theater, graphic arts, textile design, industrial design - cars, objects.... A new industry is developing called the creative industries and these all help the economy. For the progress of a nation, I believe we need more creative minds."
- Eduardo Castrillo