Gavin,
Seanies holding in the company is in a nominee capacity. He has no beneficial interest. The reason for the holding is that the company predated the legislation allowing single member companies which was only introduced in the 90s. You will note the accounts state that the company is a wholly owned subsidiary of Anglo.
As a nominee company, it holds the shares in Tysan Investments but it is not a wholly owned subsidiary as it is acting as a nominee.
Re Balcuik the accounts are linked below. Although the shares in the parent company are held by Anglo Nominees, the accounts disclose the beneficial interests of the directors but this only accounts for 40% of the ownership.
Gunne, Melly, O'Brien, McGann, Keane & Coulson each have 200 shares or 6.66% each. That leaves Lindat Limited (this is a Pat Doherty of Harcourt Developments company),Lar Bradshaw, Sean Fitzpatrick, Paddy Wright, Longstone Estates Limited and Lochlann Quinn divvying up the rest.
Anglo does have a charge over the 106M borrowings that Tysan has from them secured on its assets. It also has a seperate charge on the Balcuik property.
FYI
http://www.scribd.com/doc/20391532/Tysan-Accountshttp://www.scribd.com/doc/20391526/Tysan-B1http://www.scribd.com/doc/20391517/Balcuik-Chargehttp://www.scribd.com/doc/20391514/Balcuik-Accountshttp://www.scribd.com/doc/20391547/Lindat-b1http://www.scribd.com/doc/20391540/Lindat-Accounts