(a) 1.3 mm continuum image of Orion KL observed with ALMA (#2013.1.00553.S). Contour levels are from 50 mJy⁻¹ beam (5σ) to 950 mJy beam⁻¹ with a 100 mJy beam⁻¹ step. (b) Integrated intensity image of CH₃¹⁸OH (5₀–4₀ E) obtained by the ALMA SV. The contour levels are from 4.8 K km s⁻¹ (3σ) to 28.8 K km s⁻¹ with a 4.8 K km s⁻¹ step. The white ellipses in the bottom left corner indicate the synthesized beams. The CH₃¹⁸OH peaks (MeOH1 and MeOH2) are shown by the white squares. The positions of Hot Core (HC), IRc7, and the HCOOCH₃ peaks (MF) identified by Favre et al. (2011) are shown by the star, circle, and gray cross marks, respectively. The black cross marks show the positions of dM-1 and dM-3.