However, the member farmers had to change those unacceptable farming process following the agreement between them and the 4C unit to keep their selling contract for the next year. The private sector had the advantage because the small difference between conventional farming and its standard methods. Therefore, the farmers easily adopted the 4C standard. According to the effectiveness and flexibility of private sector in extension services and market professional coffee farmers will be able to produce the high quality products which can bring the higher income for them. Therefore, 4C standard was preferred by the local coffee farmers rather than QGAP which provided and extended by the government sector. However, QGAP certification became an important issue for the farmers who wanted to participate in 4C standard. This was because the farmers were requested the QGAP certification for 4C membership qualification.