Unitarity along with precision measurements of sin 2β, V us and V cb allows one to find a lower bound V ub ≥ 0.0035 which, on using the recently measured angle α of the unitarity triangle, translates to V ub = 0.0035 ± 0.0002. This precise value, stable for a good deal of changes in α, along with CP violating phase δ found from unitarity allows the construction of a 'precise' CKM matrix. The above unitarity based value of V ub is in agreement with the latest exclusive value used as input by UTfit, CKMfitter, HFAG, however underlines the so called 'tension' faced by the latest inclusive V ub = 0.00449 ± 0.00033. Further, using this inclusive value of V ub along with the latest sin 2β, one finds δ = 23 o − 39 o , again in conflict with δ measured in B-decays. The calculated ranges of the elements of the CKM matrix are in excellent agreement with those obtained recently by UTfit, CKMfitter and HFAG. Also, the ratio Vts V td is in agreement with its latest measured value, whereas there is some disagreement between the 'measured' and the calculated V td values.