Industry and construction, one of the three main pillars of the economy, grew by just 0.44%.
Services grew by 6.33% and contributed nearly 79% of GDP thanks to policies issued to promote tourism and boost demand for consumer goods.
Agriculture, forestry and fishery output grew by 3%.
Foreign trade was down 15.2% year-on-year to $316.65 billion in the first half, with exports falling by 12.1% and imports by 18.2%.
There was a trade surplus of $12.25 billion.
The consumer price index rose by 3.29% year-on-year as food and electricity prices increased.