January 10, 2019 Oikumene Waskita held a 2018 Joint Christmas Celebration and Celebration with the theme "Jesus Christ Wisdom for Us", the activity was held in the Waskita Head Office Building in Jakarta.

The event was filled with activities of praise, prayer, handover of gifts to OB, CS and Security Waskita, as well as reflections and Christmas sermons delivered by Pastor Tumpal Tobing, STh and Father Nugroho SCJ.

Present at the event was President Director of PT Waskita Karya (Persero) Tbk, I Gusti Ngurah Putra, Director of Human Capital Management of PT Waskita Karya (Persero) Tbk, Hadjar Seti Adji, Independent Commissioner of PT Waskita Karya (Persero) Tbk, Victor S Sirait.