26 February, 2558 AN worker drained Acetic acid from discharge TP-512B to IBC container by Hose. After IBC container is full by Acetic acid Mr. He took hose out of IBC by putting on chemical glove for taking out the hose. At the beginning He did not feel irritant or painful. But after feeling irritanted. He cleaned his hand by eye shower water for 10 minutes. He feeling better, so he did not inform to any colleague or leader. After that (few days) his thumb symptom became worse (skin was peeled off) but he still did not inform to anyone because he was afraid of getting complaints and punishments. Until 3rd of March he felt more painful and was worried about his thumb’s problem in the near future so he decided to inform operator that his thumb got injury by Acetic acid that leaked through the chemical glove on 26th then operator informed to Shift supervisor and take him to first aid room for getting an appropriate treatment from doctor.