| 2025 | Portland Chinese Scholarship Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Research Foundation for Korean | 990EZ | President | 1 | $0 | - | View return |
| 2024 | Portland Chinese Scholarship Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Portland Chinese Scholarship Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Research Foundation for Korean | 990EZ | President | 3 | $0 | - | View return |
| 2022 | Portland Chinese Scholarship Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Research Foundation for Korean | 990EZ | President | 3 | $0 | - | View return |
| 2021 | Portland Chinese Scholarship Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Research Foundation for Korean | 990EZ | President | 5 | $0 | - | View return |
| 2020 | Research Foundation for Korean | 990EZ | Senior Vice President | 2 | $0 | $0 | View return |
| 2020 | Portland Chinese Scholarship Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Sheboygan County Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Portland Chinese Scholarship Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Research Foundation for Korean | 990EZ | Senior Vice President | 2 | $0 | $0 | View return |
| 2018 | Portland Chinese Scholarship Foundation | 990 | Trust Chair | 2 | $0 | $0 | View return |
| 2018 | Sheboygan County Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Research Foundation for Korean | 990EZ | Senior Vice President | 2 | $0 | $0 | View return |
| 2017 | Northern California Umpires Association | 990 | Treasurer | 16 | $0 | $0 | View return |
| 2017 | Portland Chinese Scholarship Foundation | 990 | Trust Chair | 2 | $0 | $0 | View return |
| 2017 | Research Foundation for Korean | 990EZ | Senior Vice President | 2 | $0 | - | View return |
| 2017 | Sheboygan County Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Northern California Umpires Association | 990 | Treasurer | 16 | $500 | $0 | View return |
| 2016 | Portland Chinese Scholarship Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Sheboygan County Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Research Foundation for Korean | 990EZ | Senior Vice President | 2 | $0 | - | View return |
| 2015 | Northern California Umpires Association | 990 | Treasurer | 16 | $500 | $0 | View return |
| 2015 | Portland Chinese Scholarship Foundation | 990EZ | Director | 1 | $0 | - | View return |
| 2015 | Sheboygan County Historical Society | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Research Foundation for Korean | 990EZ | Chair Of Personnel Communication | 2 | $0 | - | View return |
| 2014 | Northern California Umpires Association | 990 | Treasurer | 16 | $500 | $0 | View return |
| 2014 | Portland Chinese Scholarship Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2013 | Northern California Umpires Association | 990 | Treasurer | 16 | $500 | $0 | View return |
| 2013 | Portland Chinese Scholarship Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2013 | Sheboygan County Historical Society | 990 | Director | 1 | $0 | $0 | View return |