Document:

EX-10.(a)

Cliffs Natural Resources Inc. Nonemployee Directors’ Compensation Plan (Amended and Restated
as of December 31, 2008)(filed as Exhibit 10(nnn) to Form 10-K of Cliffs Natural Resources Inc. on
February 26, 2009 and incorporated by reference)EX-10.(b)

Form of Indemnification Agreement between Cliffs Natural Resources Inc. (formerly
Cleveland-Cliffs Inc) and Directors (filed as Exhibit 10(f) to Form 10-K of Cliffs Natural
Resources Inc. on February 2, 2001 and incorporated by reference)EX-10.1

CONFIDENTIAL GENERAL RELEASE OF ALL CLAIMS

This CONFIDENTIAL GENERAL RELEASE OF ALL CLAIMS (the “Release”) is entered into this—14th day
of January 2011 (the “Effective Date”), by and among SafeStitch Medical, Inc., and its agents,
servants, parent companies, officers, directors, predecessors, subsidiaries, divisions and
successors, along with its and their current and former employees, attorneys, officers, directors
and agents, both individually and in their business capacities (hereinafter collectively referred
to as “Employer”) and Adam S. Jackson, his heirs, successors and assigns (hereinafter
referred to as “Employee”).

WHEREAS, Employee desires to compromise, finally settle, and fully release any and all actual
or potential claims, including, without limitation, those related to Employee’s employment and
separation of employment, that Employee in any capacity may have or claim to have against Employer.

WHEREAS, Employee acknowledges that Employee is waiving his or her rights or claims only in
exchange for consideration in addition to anything of value to which he or she already is entitled.

WHEREAS, Employee voluntarily and irrevocably resigned from employment with Employer effective
January 10. 2011, and Employer accepts Employee’s resignation of employment. Employee’s
resignation is attached hereto as Exhibit A.

NOW, THEREFORE, in consideration of the foregoing and the payments specified below in
paragraph 2, Employee and Employer agree as follows:

1. The recitals above are true and correct and are incorporated herein as material terms of
this Release.

2. In consideration for Employee’s execution of this Release and compliance with its terms,
Employer agrees to pay Employee the total, gross amount of Twenty-Nine Thousand and 00/100 Dollars
($29,000.00), less applicable taxes, withholdings, and authorized deductions. This amount, less
applicable taxes, withholdings, and authorized deductions, will be paid to Employee upon Employer’s
receipt of this original Release executed by Employee within ten (10) business days following
expiration of the revocation period set forth in paragraph 14.

3. (a) In consideration for the promises set forth in this Release, Employee releases and
forever discharges Employer (as defined above) from any and all claims, demands or liabilities,
whether known or unknown, that Employee ever had or may now have against Employer from the
beginning of time to the date of this Release. This Release shall not affect any rights of Employee
as a consultant pursuant to that Consulting Agreement executed by and between Employer and Employee
(or Employee’s affiliated entity) of even date.

(b) The general release of claims set forth in paragraph 3(a) above includes, without
limitation, any and all claims, demands or liabilities relating to or arising out of Employee’s
employment with and separation of employment from Employer, including, without limitation, any
claims, demands or liabilities for wrongful termination, constructive discharge, assault, battery,
defamation, invasion of privacy, all claims based on negligent and/or intentional conduct, unpaid
wages and commissions, severance or separation payments, termination benefits, payments for accrued
but unused vacation or time-off, bonus or incentive payments, reimbursements, benefits or the value
thereof, breach of any express or implied contract, breach of any covenant of good faith and fair
dealing, or pursuant to any federal, state, or local employment laws, rules, regulations,
ordinances, or executive orders prohibiting retaliation, coercion, intimidation, interference,
harassment, or, inter alia, age, race, color, religion, sex, pregnancy, ancestry,
gender, national origin, handicap, disability, marital status, familial status, sexual orientation,
or genetic information discrimination, including, without limitation, claims arising under:

	 	•	 	the Age Discrimination in Employment Act (“ADEA”) and the Older Workers Benefit
Protection Act (“OWBPA”), 29 U.S.C. § 621, et. seq.

	 	•	 	Title VII of the Civil Rights Act of 1964, as amended, 42 U.S.C. § 2000e, et. seq.
(“Title VII”)

	 	•	 	the Family and Medical Leave Act, as amended, 29 U.S.C. § 2601, et. seq. (“FMLA”)

	 	•	 	the Americans with Disabilities Act, as amended, 42 U.S.C. § 12101, et. seq. (“ADA”)

	 	•	 	the Rehabilitation Act of 1973, as amended, 29 U.S.C. § 701, et. seq.

	 	•	 	the Occupational Safety and Health Act, 29 U.S.C. § 651, et. seq., and Florida laws
governing workplace health and safety

	 	•	 	the Equal Pay Act, 29 U.S.C. § 206, et. seq.

	 	•	 	the Civil Rights Acts of 1866 and 1871, 42 U.S.C. §§ 1981, 1982, 1983, 1985, and 1986

	 	•	 	the Consolidated Omnibus Budget Reconciliation Act (“COBRA”)

	 	•	 	the Employee Polygraph Protection Act, 29 U.S.C. § 2001, et. seq.

	 	•	 	the Genetic Information Non-Discrimination Act of 2008, 42 U.S.C. § 2000ff, et. seq.

	 	•	 	the Employee Retirement Income Security Act of 1974 (excluding any vested benefits under
a plan governed by ERISA), as amended, 29 U.S.C. § 1001, et. seq.

	 	•	 	the Sarbanes-Oxley Act

	 	•	 	the Immigration Reform and Control Act

	 	•	 	the Fair Credit Reporting Act

	 	•	 	the Health Insurance Portability and Accountability Act Of 1996 (“HIPAA”)

	 	•	 	the Worker Adjustment and Retraining Notification Act (“WARN”)

	 	•	 	the Florida Private Sector Whistleblower Act, § 448.101, et. seq., Fla. Stat.

	 	•	 	the Florida Civil Rights Act of 1992, § 760.01, et. seq., Fla. Stat.

	 	•	 	Florida’s workers’ compensation retaliation statute, § 440.205, Fla. Stat.

	 	•	 	the Florida Minimum Wage Act, § 448.110, Fla. Stat.

	 	•	 	Florida’s wage payment and wage discrimination laws, including, without limitation,

	 	•	 	§§ 448.07 and 448.08, Fla. Stat.

	 	•	 	Florida’s AIDS discrimination laws, including, without limitation, § 760.50, Fla. Stat.

	 	•	 	all local and county ordinances governing the employment relationship

	 	•	 	the Federal and State of Florida Constitutions

	 	•	 	any other applicable federal, state, or local law, common or statutory, or tort or
common law cause of action, including, but not limited to, any cause of action for costs,
fees, expenses, attorneys’ fees, penalties, damages, and liquidated and consequential
damages incurred in these matters, which Employee ever had, now has, or shall have as of
the date of this Release.

Employee does not waive or release claims that arise after the date Employee executes this Release,
nor does Employee waive or release claims for unemployment compensation benefits or workers’
compensation benefits.

4. Employee affirms that Employee has reported all hours worked as of the date Employee signs
this Release and has been paid and/or received all compensation, wages, bonuses, commissions,
and/or benefits to which Employee may be entitled. Employee also affirms that Employee has been
granted any leave to which Employee was entitled under the Family and Medical Leave Act, the
Americans With Disabilities Act, or related state or local leave or disability accommodation laws.
Employee further affirms that Employee has no known workplace injuries or occupational diseases.

5. Employee represents that no person other than the parties who sign this Release had or has
any interest in this Release. Employee also represents that he or she has the sole right and
exclusive authority to execute this Release.

6. (a) Employee agrees that any and all Confidential Information (as that term is defined
below) that he or she received, or to which he or she was exposed, or that he or she created during
his or her employment with Employer is and shall remain confidential and shall at all times remain
the property of Employer. Employee represents and warrants that that he or she has not taken and
does not possess any documents or information, in any form or format, electronic, hard-copy, or
otherwise, that contain, in whole or in part, Confidential Information of Employer. Employee
further represents and warrants that he or she will keep all Confidential Information of Employer
strictly confidential and shall not, at any time or in any manner, share, disclose, or disseminate
such Confidential Information with or to any individual or entity, provided that the foregoing
restrictions on use and disclosure shall not apply to any Confidential Information which: (i) at
the time of disclosure can be demonstrated to be already known to Employee prior to his employment
with the Company as evidenced by written documents in the Employee’s possession, unless such
Confidential Information is the subject of another confidentiality agreement with or other
obligation of secrecy to the Company or another Person for which the Employee is also bound; (ii)
at the time of disclosure is generally available to the public other than by an act or omission on
the part of Employee; (iii) is acquired from or made available by a third Person that is not bound
by a confidentiality agreement with or other obligation of secrecy to the Company or another
Person; or (iv) is required to be disclosed pursuant to an order of a court or governmental
authority, provided that the Employee gives the Company prompt written notice of any such
requirement so that the Company may seek a protective order or other appropriate remedy and
Employee cooperates with the Company in obtaining such an order or other appropriate remedy. In
addition, Employee may disclose any Confidential Information to his or her attorneys following a
subpoena by a party to a lawsuit or upon receipt of an order of court.

(b) For purposes of this Release, the term “Confidential Information” includes, but is not
limited to, all correspondence, communications, studies, plans, reports, surveys, analyses,
sketches, drawings, specifications, notes, records, memoranda, computer-generated data or
documents, and all other non-public information relating to the business activities of Employer and
any third parties, including, without limitation, all methods, processes, formulas, techniques,
equipment, research data, experiments, marketing and sales information, personnel data, customer
lists, employee lists, supplier lists, e-mails, proposals, price lists, inventory information,
marketing plans, databases, financial data, trade secrets, any other information that is not
generally known to the public, which Employer takes reasonable methods to protect, and which
derives independent economic value from not being readily known or accessible by individuals or
entities other than Employer.

7. Employee agrees that all matters relating to this Release are strictly confidential and
that Employee and his or her attorney shall not disclose or disseminate any information concerning
any term(s) hereof to any third person(s) except under the following conditions: a) Employee may
advise his or her tax attorney, consultant, or the Internal Revenue Service that he or she received
income as a result of a settlement agreement relating to his or her employment; or b) if subpoenaed
by a party to a lawsuit or ordered by court, Employee may testify regarding the Release or may
produce the Release provided that Employee has given Employer sufficient notice to assert any
objections prior to his or her appearance at a deposition, the return of a subpoena, or the entry
of a court order. Employee agrees to waive any objection to Employer’s request that the document
production or testimony be done in camera and under seal. Any disclosure or dissemination
by Employee other than as described above will be regarded as a breach of this Release and a cause
of action shall immediately accrue for damages, including, but not limited to, all or some of the
amount paid to Employee under this Release. Further, nothing in this paragraph shall be
interpreted to prevent Employee from disclosing this Release in connection with bringing a legal
challenge to the validity or enforceability of the Release under the Age Discrimination in
Employment Act.

8. Employee acknowledges that Employer will pay no consideration other than as provided for by
this Release.

9. Employee agrees that Employee will not communicate to any person or persons any information
or opinion which could be construed as a negative comment about Employer, or which may have the
effect of placing said party in a negative or unflattering light. Employee also agrees not to
criticize or make any disparaging or defamatory remarks about Employer. Employer agrees that it
will respond to all inquiries about Employee, to the extent that such inquiry is properly directed
to Employer’s human resources department, in accordance with its policy of providing only the dates
of Employee’s employment and the position held by Employee.

10. Employee fully understands that if any fact with respect to which this Release is executed
is found hereafter to be different from the facts Employee now believes to be true, he or she
expressly accepts and assumes the risk of such possible difference in fact and agrees that this
Release shall be effective notwithstanding such difference in fact.

11. Employee further warrants that in the event he or she is contacted by representatives of
any state or federal governmental, regulatory, investigatory or law enforcement authority regarding
any matters involving the business affairs or activities of Employer, that, to the extent permitted
by law, he or she will decline to submit to an informal interview or similar until he or she has
had an opportunity to notify Employer, which he or she will do immediately. Nothing herein is
intended to require Employee to waive any rights guaranteed to him or her by law or the
Constitutions of the United States or Florida.

12. Employee agrees that for a one year period following Employee’s separation from Employer,
Employee shall not, directly or indirectly, solicit, recruit, employ or otherwise engage as an
employee, independent contractor or advisor, or attempt to solicit, recruit, employ or otherwise
engage as an employee, independent contractor or adviser, any person who is or was an employee or
independent contractor of Employer at any time during Employee’s employment with Employer, or in
any manner induce or attempt to induce any person who is or was an employee or independent
contractor of Employer during Employee’s last twenty-four (24) months of employment with Employer
to terminate his or her relationship with Employer.

13. Employee agrees, as a condition precedent to receipt of any money pursuant to this
Release, that he or she will deliver to Employer any and all books, notebooks, financial
statements, passwords, codes, manuals, cellular telephones, computers, palm pilots, software,
hardware, floppy disks, corporate credit cards, keys, electronic beeper or other electronic device,
data and other documents and materials in his or her possession or control relating to any of
Employer’s confidential information or trade secrets, or which is otherwise the property of
Employer. Employee also agrees that he or she shall not access, or attempt to access, by any means,
any of Employer’s computer systems.

14. Pursuant to the provisions of the Older Workers Benefit Protection Act (OWBPA), which
applies to Employee’s waiver of rights under the Age Discrimination in Employment Act, Employee has
a period of at least twenty-one (21) days within which to consider whether to execute this Release.
Also pursuant to the OWBPA, Employee may revoke the Release within seven (7) days of its
execution, by sending written notification to SafeStitch Medical, Inc. (Attn: Joshua Weingard,
Chief Legal Officer). It is specifically understood that this Release shall not become effective
or enforceable until the seven-day revocation period has expired. Consideration for this Release
will not be paid until the end of the seven-day revocation period. Employee agrees that any
modifications, material or otherwise, made to this Release, do not restart or affect in any manner
the original up to twenty-one (21) calendar day consideration period.

15. Employee is advised to consult with an attorney before executing this Release.

16. Employee and Employer acknowledge that the cash payments provided under this Release are
taxable compensation and will be reported on Employee’s Form W-2 for the year of payment. In
addition, Employee and Employer acknowledge that all other payments and benefits provided under
this Release that are required pursuant to the Internal Revenue Code to be treated as taxable
compensation also will be reported on Employee’s Form W-2 for the year the payment or benefit is
provided.

17. This Release does not constitute an admission of a violation of any law, order,
regulation, or enactment, or of wrongdoing of any kind by Employer and is entered into by the
parties solely to end any controversy between them.

18. This Release shall be governed by and construed and enforced in accordance with the laws
of the State of Florida, both substantive and remedial. The sole and exclusive venue for any legal
action arising out of this Release shall be in Miami-Dade County, Florida. The failure of any
provision of this Release shall in no manner affect the right to enforce the same, and the waiver
by any party of any breach of any provision of this Release shall not be construed to be a waiver
of such party of any succeeding breach of such provision or a waiver by such party of any breach of
any other provision.

19. In the event that any provision or portion of this Release shall be determined to be
invalid or unenforceable for any reason, the remaining provisions of this Release shall be
unaffected thereby and shall remain in full force and effect.

20. This Release represents the entire understanding and agreement between the parties with
respect to the subject matter hereof and there are no promises, agreements, conditions,
undertakings, warranties, or representations, whether written or oral, express or implied, between
the parties other than as set forth herein and as set forth in that certain Consulting Agreement
effective January 10, 2011. This Release cannot be amended, supplemented, or modified except by an
instrument in writing signed by the parties against whom enforcement of such amendment, supplement
or modification is sought. Notwithstanding the above, Employee understands and agrees that any and
all confidentiality agreements, non-disclosure agreements, and agreements protecting or pertaining
to Employer’s intellectual property and/or trade secrets that Employee may have signed or received
in connection with his or her employment with Employer shall remain in full force and effect.

21. This Release may be executed and delivered (including by facsimile transmission or e-mail)
in one or more counterparts, and by Employer and Employee in separate counterparts, each of which
when executed and delivered shall be deemed to be an original but all of which taken together shall
constitute one and the same Release.

22. This Release is final and binding upon Employee and shall inure to the benefit of his or
her heirs, legal representatives, successors and assigns.

23. EMPLOYEE FURTHER STATES THAT HE OR SHE HAS CAREFULLY READ THIS RELEASE, IT HAS BEEN
FULLY EXPLAINED TO HIM OR HER, THAT HE OR SHE HAS HAD THE OPPORTUNITY TO HAVE IT REVIEWED BY AN
ATTORNEY, AND THAT HE OR SHE FULLY UNDERSTANDS ITS FINAL AND BINDING EFFECT, AND THAT THE ONLY
PROMISES MADE TO HIM OR HER TO SIGN THE RELEASE ARE THOSE STATED IN THE RELEASE, AND THAT EMPLOYEE
IS SIGNING THIS RELEASE VOLUNTARILY WITH THE FULL INTENT OF RELEASING EMPLOYER OF ALL CLAIMS.

1

Signed this 14th day of January, 2011.

Adam S. Jackson:

/s/ Adam S. Jackson

Employee’s signature

Print Name: Adam S. Jackson

	 	 	 	 	 	 	 	 	 
	STATE OF FLORIDA)
	 	 	 	 
	 
	 	 	 	 	 	) SS:
	COUNTY OF
	 	 	)	 	 	 	 	 

The foregoing instrument was acknowledged before me this 14th day of January, 2011,
by Adam S. Jackson, who is personally known to me or who has produced a driver’s license as
identification and who did (did not) take an oath.

James J. Martin

Print or Stamp Name:

Notary Public, State of Florida

Commission No.:

My Commission Expires:

SAFESTITCH MEDICAL, INC:

	 	 	 	 	 	 	 	 	 
	By:/s/ Jeffrey G. Spragens
	 	 	 	 
	 
	 	 	 	 
	Jeffrey G. Spragens. Chief Executive Officer

	SafeStitch Medical, Inc.
	 	 	 	 
	STATE OF FLORIDA
	 	 	)	 	 	 	 	 
	 
	 	) SS:	 	 	 	 
	COUNTY OF
	 	 	 	 	 	 	)	 

The foregoing instrument was acknowledged before me this 14th day of January
2011, by Jeffrey G. Spragens, who is personally known to me or who has produced a driver’s
license as identification and who did (did not) take an oath.

James J. Martin

Print or Stamp Name:

Notary Public, State of Florida at Large

Commission No.:

My Commission Expires:

2

Exhibit A

Resignation Letter

3

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