| Activities | Period |
| Trip to Caring the Children of Bethany Children's home | 2015 |
| Donate food and supplies to Chung-Yi's Children's home | 2015 |
| Sponsor Majia Junior High School Samba Drum Band to perform abroad | 2015 |
| Respond to a call from DaLiao District Farmer's Association- Red bean festival/ To purchase Agricultural products | 2014 |
| Purchase Syin-Lu Social Welfare Foundation's egg Roll | 2014 |
| Donate for helping the Gas explosion in Kaohsiung | 2014 |
| PWSA Taiwan | 2009 |
| Eden Social Welfare Foundation | 2012~ |
| Donate for helping Inundation cause by Typhoon Morakat | 2009 |
| Baseball Day at the Chengcheng Lake Baseball Stadium: May 2, 2015 | 2015 |
| Participation and Sponsorship of Chung Yi Social Welfare Foundation Fun Fair | 2016 |
| Updated Trademark Logo - Commemorating 40 Years in the Precision Timing Industry | 2016 |
| Launch of MEMS Microphone | 2016 |
| Harmony's Social Commitment to Foundations | 2017 |
| Harmony's Support for the Chung Yi Social Welfare Foundation's Fun Fair | 2018 |
| Notice of Relocation of Taipei Office | 2021 |