The original LHASA knowledgebase in its entirety comprises about 2,300 transforms. We obtained all transforms from the two organizations that maintain it, the non-profit Lhasa Ltd in the UK (Leeds), and the small company LHASA LLC in the US (Cambridge, MA). The entire set is split roughly into 1,000 basic rules for retrosynthesis planning maintained by the latter company, and 1,300 more-complex rules held, and recently made public, 69 by the former.