Catalysis and Surface Science beamline (BL11U) is connected to an undulator and equipped with two gratings that offer soft X-rays from 20 to 600 eV with a typical photon flux of 5×1010 photons/s and a resolution (E/ΔE) better than 105 at 29 eV. This beamline was set up primarily for the high-resolution X-ray Photoelectron Spectroscopy (XPS), Ultraviolet Photoelectron Spectroscopy (UPS) and Near Edge X-Ray Absorption Fine Structure spectroscopy, (NEXAFS). This endstation is comprised of four ultrahigh vacuum (UHV) chambers including analysis chamber, preparation chamber, molecular beam epitaxy (MBE) chamber, and a radial distribution chamber. The analysis chamber is equipped with a VG Scienta R4000 analyzer, a monochromatic Al Ka X-ray source, a UV light source, low energy electron diffraction (LEED), a flood electron gun, and a manipulator with high precision and five-degree-of-freedom. The preparation chamber comprises an ion gun, a quartz crystal microbalance (QCM), a residual gas analyzer, a manipulator with high precision and four-degree-of-freedom, and several evaporators. The MBE chamber houses a QCM, several evaporators and a manipulator with two-degree-of-freedom.