BTS Skytrain Sukhumvit Line (รถไฟฟ้าบีทีเอส สายสุขุมวิท) in Bangkok metropolitan expanded northward from the current terminus – Kasetsart University Station to Wat Phra Sri Mahathat Station on June 4, 2020.

The following 4 new stations are included in this section.
- Royal Forest Department Station (กรมป่าไม้, N14)
- Bang Bua Station (บางบัว, N15)
- 11th Infantry Regiment Station (กรมทหารราบที่ 11, N16)
- Wat Phra Sri Mahathat Station (วัดพระศรีมหาธาตุ, N17)