# Relationship history for MSHA mine 0900150

Current hierarchy: **BASF SE → BASF Corporation-Attapulgus EVP → McCall Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Milwhite Inc → McCall Mine; 1950-01-01 to 2002-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Milwhite Inc → McCall Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Milwhite Inc → Milwhite Inc; 1950-01-01 to 2002-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Zemex Attapulgite LLC → McCall Mine; 2002-02-01 to 2007-11-27; source msha-controller-operator-history
- **controller_controls_mine:** Zemex Corp → McCall Mine; 2002-02-01 to 2003-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Zemex Corp → Zemex Attapulgite LLC; 2002-02-01 to 2003-03-02; source msha-controller-operator-history
- **controller_controls_mine:** Cementos Pacasmayo SSA → McCall Mine; 2003-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cementos Pacasmayo SSA → Zemex Attapulgite LLC; 2003-03-03 to 2007-11-27; source msha-controller-operator-history
- **controller_controls_mine:** BASF SE → McCall Mine; 2007-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Attapulgite Mining Inc → McCall Mine; 2007-11-28 to 2008-09-25; source msha-controller-operator-history
- **controller_controls_mine:** General Chemical Industrial Products Inc → McCall Mine; 2007-11-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** General Chemical Industrial Products Inc → Attapulgite Mining Inc; 2007-11-28 to 2008-09-25; source msha-controller-operator-history
- **operator_operates_mine:** BASF Corporation-Attapulgus EVP → McCall Mine; 2008-09-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** BASF SE → BASF Corporation-Attapulgus EVP; 2008-09-26 to current/open; source msha-controller-operator-history