Lithium Argentina AG

Table 42: Statistical Analysis of Duplicate Samples – ASANOA

The assay results for duplicate samples at ASANOA demonstrate a high degree of precision and consistency for key parameters of lithium and potassium. The Relative Percent Difference (RPD) is below the commonly accepted 10% cut-off for lithium and potassium, with values of 6.8% and 8.1% respectively. This suggests that the laboratory’s analytical procedures are consistently producing results that are in close agreement with each other.

Figure 88 display max-min plots for each laboratory showing the maximum versus minimum values for each pair of samples and the failure line is represented by a hyperbolic function (𝑌 2 = 𝑚 2 𝑋 2 + 𝑏 2), where m is the slope of the asymptote and b the intersection at the y axis. The failure line was calculated based on a 10% relative error allowance.

The max-min plots showed that out of the six duplicates tested, only one failure occurred for lithium while there were no failures for potassium. This translates to a 16.7% failure rate for lithium and 0% for potassium. The generally accepted failure rate threshold is 10% which means that duplicates are considered acceptable for potassium but unacceptable for lithium. However, it's important to note that the sample size taken under Centaur Resources is limited, with only six duplicates assayed. Therefore, in this case, a single failure surpasses the 10% threshold. Taking this into consideration a 16.7% failure rate is deemed to be acceptable.