The atmospheric composition on WASP-43b is expected to be that of a warm, dense planet where cloud formation has affected the abundance of 11 elements (Mg, Si, Ti, O, Fe, Al, Ca, S, C K, Cl) in a hydrogen-dominated atmosphere. Consequently, is the most abundant gas-phase species inside the collision dominated part of the atmosphere of WASP-43b. This can change for the outermost, more diluted atmospheric layers where external high-energy radiation may cause to photoionise similar to brown dwarfs (). Brown dwarfs do form a shell of ionised gas (an ionosphere) in these photo-dissociation regions. CO appears as the most abundant molecule with becoming more abundant only in the uppermost, low-pressure atmosphere p$_{\rm gas}<10^{-4}$bar on the nightside. The abundance hierarchy of the 3rd and 4th most abundant gas species depends considerably on the local thermodynamic conditions (Fig. \[fig:Mol\_ASP\]). The equatorial evening terminator (longitude $\phi= 90^o$) shows and as the next most abundant gas species in chemical equilibrium. The equatorial morning terminator (longitude $\phi= 270^o$) has considerably more than throughout. The substellar and the anti-stellar point show this shift in SiO//CO abundances more clearly. On the dayside, appears with a number density comparable to CO for p$_{\rm gas}<0.1$bar. Small carbon (C, 