A source points out that the tractors being provided to protesting Thai farmers by those trying to topple the elected government are made by Siam Kubota Corp, a joint venture between Kubota Corporation Japan and the Siam Cement Group. Siam Cement is one of the Crown Property Bureau's core holdings. It's more evidence of the involvement of the old elite in the struggle to win control of parliament, sabotage the royal succession, and ensure that CPB wealth stays out of the hands of Vajiralongkorn.