Junjie Li performed extensive experimental evaluation of the SPEChpc 2021 Benchmark Suites candidates in large-scale and diverse computational facilities. The data collected and the performance data he provided was instrumental in the continued development of the benchmark candidates, the assessment of the candidates by SPEC members, and the selection of the benchmark candidates. Junjie provided valuable access and computing time at two different datacenters. These computing resources were very valuable to the HPG committee as they increased the diversity of the platforms available for the evaluation of the benchmarks. Junjie consistently performed these evaluations throughout the development cycle of the SPEChpc 2021 Benchmark Suites and led the effort in the writing of a manuscript that presents the results of his evaluation.