Description of the 2 concepts for the logo design. Concept_01 is inspired by the reinforcing bars which is a tension device used in reinforced concrete to maintain the structure of a building. I thought the reinforcing bars' characteristics conveyed the key points of Sungmoon Construction's identity. Concept_02 is inspired by the Chinese character 門(moon) in Sung*moon* Construction which means 'door'. I tried to visualize the meaning of the character by symbolizing the character to design the logo. 
Concept_01
The client's final choice of color palette was option 3
Concept_02